Sounding reference signal (srs) resource indicator (sri) association for configured-grant (cg)-based transmission and reception point (trp) physical uplink shared channel (pusch) transmission

ABSTRACT

Methods, systems, and devices for sounding reference signal (SRS) resource indicator (SRI) association for configured grant (CG) based transmission and reception point (TRP) physical uplink shared channel (PUSCH) transmission are described. In some examples, a user equipment (UE) may receive first control signaling indicating a first and second sounding reference signal (SRS) resource set associated with a first and second set of power control parameter, respectively. The UE may receive second control signaling indicating a CG configuration, the first and second power control parameters for transmissions in the CG configuration. In some examples, the UE may determine a configuration status for one or more fields the first control signaling, the second control signaling, or both. The UE may select an SRS resource set based on the configuration status and may transmit one or more CG uplink transmissions with the CG configuration using the selected SRS resource set.

TECHNICAL FIELD

The following relates to wireless communications, including soundingreference signal (SRS) resource indicator (SRI) association forconfigured grant (CG)-based transmission and reception point (TRP)physical uplink shared channel (PUSCH) transmission.

DESCRIPTION OF THE RELATED TECHNOLOGY

Wireless communications systems are widely deployed to provide varioustypes of communication content such as voice, video, packet data,messaging, broadcast, and so on. These systems may be capable ofsupporting communication with multiple users by sharing the availablesystem resources (for example, time, frequency, and power). Examples ofsuch multiple-access systems include fourth generation (4G) systems suchas Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, orLTE-A Pro systems, and fifth generation (5G) systems which may bereferred to as New Radio (NR) systems. These systems may employtechnologies such as code division multiple access (CDMA), time divisionmultiple access (TDMA), frequency division multiple access (FDMA),orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonalfrequency division multiplexing (DFT-S-OFDM). A wireless multiple-accesscommunications system may include one or more base stations or one ormore network access nodes, each simultaneously supporting communicationfor multiple communication devices, which may be otherwise known as userequipment (UE).

In some cases, a base station may configure a UE with a CG configurationfor CG uplink transmissions. In the case in which the CG configurationis of a type, such as a Type 1 configured grant, the base station maytransmit the CG configuration as radio resource control (RRC) signalingthat may both configure and activate the CG uplink transmissions.Because there may not be related downlink control information (DCI)signaling for some CG signaling, instead, sounding reference signal(SRS) resource indicator (SRI) information, precoding information, and aquantity of layers may be provided by RRC-based parameters in the RRCsignaling. In some cases, the UE may receive such RRC-based parametersin the RRC signaling, but may not be configured to efficiently oreffectively interpret the SRI, the precoding information, or thequantity of layers. For example, the UE may be configured with more thanone SRS resource set so the UE may have difficulty determining which SRSresource set to use when interpreting the SRI, the precodinginformation, and the quantity of layers, among other information. Insome cases, the base station may configure the UE with multiple sets ofRRC-based parameters, for example, multiple parameters associated withmultiple SRI fields, multiple precoding information fields, and multiplequantities of layers. In such cases, the complexity for determining anassociation between the SRS resource sets and the RRC-based parametersmay increase relative to cases having a single SRS resource set.Further, if configured with more than one SRS resource set, the UE mayhave difficulty determining a mapping between the SRS resource sets anduplink transmissions.

SUMMARY

The systems, methods and devices of this disclosure each have severalinnovative aspects, no single one of which is solely responsible for thedesirable attributes disclosed herein.

One innovative aspect of the subject matter described in this disclosurecan be implemented in a method for wireless communication. The methodincludes receiving first control signaling indicating a first soundingreference signal (SRS) resource set associated with a first set of powercontrol parameters and a second SRS resource set associated with asecond set of power control parameters, receiving second controlsignaling indicating a configured grant (CG) configuration, the firstset of power control parameters and the second set of power controlparameters being for uplink transmissions and associated with the CGconfiguration, determining a configuration status of each of one or morefields in radio resource control (RRC) signaling based on one or both ofthe first control signaling or the second control signaling, selecting aSRS resource set from the first SRS resource set or the second SRSresource set based on the configuration statuses, and transmitting oneor more uplink transmissions on a physical uplink shared channel (PUSCH)associated with the CG configuration using the SRS resource set selectedfrom the first SRS resource set or the second SRS resource set.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in an apparatus for wirelesscommunication. The apparatus includes a processor, memory coupled withthe processor, and instructions stored in the memory. The instructionsmay be executable by the processor to cause the apparatus to receivefirst control signaling indicating a first SRS resource set associatedwith a first set of power control parameters and a second SRS resourceset associated with a second set of power control parameters, receivesecond control signaling indicating a CG configuration, the first set ofpower control parameters and the second set of power control parametersbeing for uplink transmissions and associated with the CG configuration,determine a configuration status of each of one or more fields in RRCsignaling based on one or both of the first control signaling or thesecond control signaling, select a SRS resource set from the first SRSresource set or the second SRS resource set based on the configurationstatuses, and transmit one or more uplink transmissions on a PUSCHassociated with the CG configuration using the SRS resource set selectedfrom the first SRS resource set or the second SRS resource set.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in an apparatus for wirelesscommunication. The apparatus includes means for receiving first controlsignaling indicating a first SRS resource set associated with a firstset of power control parameters and a second SRS resource set associatedwith a second set of power control parameters, means for receivingsecond control signaling indicating a CG configuration, the first set ofpower control parameters and the second set of power control parametersbeing for uplink transmissions and associated with the CG configuration,means for determining a configuration status of each of one or morefields in RRC signaling based on one or both of the first controlsignaling or the second control signaling, means for selecting a SRSresource set from the first SRS resource set or the second SRS resourceset based on the configuration statuses, and means for transmitting oneor more uplink transmissions on a PUSCH associated with the CGconfiguration using the SRS resource set selected from the first SRSresource set or the second SRS resource set.

Another innovative aspect of the subject matter described in thisdisclosure can be implemented in a non-transitory computer-readablemedium storing code for wireless communication. The non-transitorycomputer-readable medium storing code includes instructions executableby a processor to receive first control signaling indicating a first SRSresource set associated with a first set of power control parameters anda second SRS resource set associated with a second set of power controlparameters, receive second control signaling indicating a CGconfiguration, the first set of power control parameters and the secondset of power control parameters being for uplink transmissions andassociated with the CG configuration, determine a configuration statusof each of one or more fields in RRC signaling based on one or both ofthe first control signaling or the second control signaling, select aSRS resource set from the first SRS resource set or the second SRSresource set based on the configuration statuses, and transmit one ormore uplink transmissions on a PUSCH associated with the CGconfiguration using the SRS resource set selected from the first SRSresource set or the second SRS resource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, determining the configurationstatuses of the one or more fields in the RRC signaling may includeoperations, features, means, or instructions for determining that one ormore second fields of the one or more fields may be not configured.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, selecting the SRS resourceset may include operations, features, means, or instructions forselecting the first SRS resource set based on one or more first fieldsof the being associated with the first SRS resource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the one or more fieldsinclude one or both of an SRS resource indicator field or a precodingand number of layers field.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving third controlsignaling indicating that the one or more fields may be associated withone of the first SRS resource set or the second SRS resource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the one or more fieldsinclude one or both of a SRS resource indicator field or a precoding andnumber of layers field, and one or both of the first control signalingor the second control signaling include the third control signaling.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, determining the configurationstatuses of the one or more fields in the RRC signaling may includeoperations, features, means, or instructions for determining that one ormore second fields of the one or more fields may be configured.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for determining that one ormore first fields of the one or more fields in the RRC signaling may beassociated with the first SRS resource set and that the one or moresecond fields of the one or more fields in the RRC signaling may beassociated with the second SRS resource set, where selecting the SRSresource set from the first SRS resource set or the second SRS resourceset may be based on determining that the one or more first fields may beassociated with the first SRS resource set and that the one or moresecond fields may be associated with the second SRS resource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, selecting the SRS resourceset may include operations, features, means, or instructions forselecting the SRS resource set based on a fixed order for the one ormore uplink transmissions.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, selecting the SRS resourceset based on the fixed order for the one or more uplink transmissionsmay include operations, features, means, or instructions for selectingthe first SRS resource set for a first uplink transmission in time ofthe one or more uplink transmissions and selecting the first SRSresource set or the second SRS resource set for one or more seconduplink transmissions in time of the one or more uplink transmissionsbased on a mapping type.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the mapping type includes acyclic mapping of the first SRS resource set and the second SRS resourceset.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the mapping type includes asequential mapping of the first SRS resource set and the second SRSresource set.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving third controlsignaling having a field indicating that the first uplink transmissionin time of the one or more uplink transmissions may be associated withone of the first SRS resource set or the second SRS resource set, wheretransmitting the one or more uplink transmissions may be based on thethird control signaling.

Some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein may further includeoperations, features, means, or instructions for receiving third controlsignaling having a field indicating one of a fixed set of preconfiguredmapping options associated with one or both of the first SRS resourceset or the second SRS resource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the fixed set ofpreconfigured mapping options includes one or more of a first uplinktransmission in time of the one or more uplink transmissions associatedwith the first SRS resource set and a second uplink transmission in timeof the one or more uplink transmissions associated with the second SRSresource set, a first uplink transmission in time of the one or moreuplink transmissions associated with the second SRS resource set and asecond uplink transmission in time of the one or more uplinktransmissions associated with the first SRS resource set, the one ormore uplink transmissions associated with the first SRS resource set, orthe one or more uplink transmissions associated with the second SRSresource set.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the CG configuration includesa Type 1 CG PUSCH configuration.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the one or more fields in theRRC signaling includes one or more of a SRS resource indicator field, aprecoding and number of layers field, or a pathloss reference indexfield.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the RRC signaling includesone or both of the first control signaling or the second controlsignaling.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, receiving the second controlsignaling indicating the CG configuration may include operations,features, means, or instructions for receiving second control signalingindicating a CG PUSCH configuration.

In some examples of the method, apparatuses, and non-transitorycomputer-readable medium described herein, the one or more uplinktransmissions include codebook PUSCH transmissions or non-codebook PUSCHtransmissions.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1-3B illustrate examples of wireless communications systems thatsupport sounding reference signal (SRS) resource indicator (SRI)association for configured grant (CG)-based transmission and receptionpoint (TRP) physical uplink shared channel (PUSCH) transmission inaccordance with aspects of the present disclosure.

FIG. 4 illustrates an example of a process flow that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

FIG. 5 illustrates an example of a process flow that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

FIGS. 6 and 7 show block diagrams of devices that support SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

FIG. 8 shows a block diagram of a communications manager that supportsSRI association for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

FIG. 9 shows a diagram of a system including a device that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

FIGS. 10-14 show flowcharts illustrating methods that support SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure.

DETAILED DESCRIPTION

In some wireless communications systems, a base station may configure auser equipment (UE) with a configured grant (CG) configuration providingthe UE with information associated with transmitting one or more uplinktransmissions (for example, CG uplink transmissions). For example, thebase station may transmit a radio resource control (RRC) signal, to theUE, including the CG configuration which the UE references, or otherwiseuses to transmit CG uplink transmissions. To support the transmission ofCG uplink transmissions, the base station may provide the UE with two ormore sounding reference signal (SRS) resource sets that the UE may useto transmit CG uplink transmissions. The SRS resource sets may includeone or more SRS resources, the one or more SRS resources correspondingto respective spatial domain filters associated with different beams.The UE may use such beams to transmit the CG uplink transmissions. Insome examples, the CG configuration may be associated with a Type 1 CG.In contrast to Type 2 CG (for which a base station first transmits anRRC signal including SRS resource sets and then later transmits DCIsignaling activating the SRS resource sets), for Type 1 CG, the basestation doesn't need to transmit DCI signaling because the base stationtransmits RRC signaling including information otherwise provided in aDCI signal activating the SRS resource sets as is the case for Type 2CG. For example, the base station may transmit the RRC signal, to theUE, including a Type 1 CG configuration, in which the base station mayinclude an SRS resource indicator (SRI), precoding information, and arank within a first set of RRC fields (for example, such as ansrs-ResourceIndicator field and a precodingAndNumberOfLayers field).

For multiple transmission and reception point (TRP) configurations, thebase station may include a second set of RRC fields within the Type 1 CGconfiguration, for example, configuring the UE with the first set of RRCfields for transmitting CG uplink transmissions to a first TRP, a secondset of RRC fields for transmitting CG uplink transmissions to a secondTRP, and so on, such that the base station may receive different uplinktransmissions at different TRPs. However, in some cases, the UE may havedifficulty determining, or may not be configured to determine, which SRSresource set to use in interpreting the first set of RRC fields, thesecond set of RRC fields, or the like. That is, it may be ambiguous tothe UE which SRS resource set to use for the UE for applying theinformation included in the first set of RRC fields, the second set ofRRC fields, or the like, to the CG uplink transmissions. As such, ininterpreting a first parameter (for example, within the first set of RRCfields such as an srs-ResourceIndicator parameter), the UE may havedifficulty in determining whether to use the first SRS resource set orthe second SRS resource set. Additionally, interpreting a secondparameter (for example, within the first set of RRC fields such as aprecodingAndNumberOfLayers parameter), may depend on a quantity of SRSports and a selected SRS resource, and as such, the UE may havedifficulty in determining whether to use the first SRS resource set orthe second SRS resource set.

Various aspects generally relate to a UE determining which SRS resourceset to use to interpret one or more RRC fields in a CG configurationreceived from a base station. The base station may transmit RRCsignaling, to the UE, including a Type 1 CG configuration and inaccordance with a configuration status of each of one or more RRC fields(for example, a first set of RRC fields and a second set of RRC fields).For example, the base station may configure the UE with a first SRSresource set associated with a first set of power control parameters(for example, a target power spectral density, a fractional powercontrol indicator, a closed loop index) and a second SRS resource setassociated with a second set of power control parameters and the basestation may refrain from providing the UE with information otherwiseincluded in the second set of RRC fields of the CG configuration. Thatis, the second set of RRC fields may not be configured. For example, thebase station may use a single TRP (sTRP) configuration such that thebase station may refrain from including information within the secondset of RRC fields of the CG configuration. That is, the base station mayleave the second set of RRC fields devoid of information that the UE mayuse to transmit CG uplink transmissions. Alternatively, the base stationmay refrain from including the second set of RRC fields in the CGconfiguration altogether. The base station may similarly refrain fromproviding the UE with information otherwise included in a third set ofRRC fields, a fourth set of RRC fields, and so on. As such, the UE mayidentify the first set of RRC fields and may associate the first set ofRRC fields with the first SRS resource set. For example, the first SRSresource set is the SRS resource set with a lower SRS resource setidentifier (ID), as compared to the SRS resource set ID of a second SRSresource set, and the UE associates the first set of RRC fields with theSRS resource set with the lower SRS resource set ID. In some otherexamples, the base station may include an indication (an explicitindication or an implicit indication), within RRC signaling includingthe CG configuration that may indicate which SRS resource set isassociated with the first set of RRC fields. In other words, the basestation may include an additional indication, such as an additionalfield within RRC signaling, indicating to the UE whether to use thefirst SRS resource set or the second SRS resource set in interpretingthe first set of RRC fields.

In some other examples, the base station configures the UE with multipleSRS resource sets and the base station provides the UE with theinformation associated with the second set of RRC fields. That is, thesecond set of RRC fields may be configured. In some such examples, thebase station may use a multiple TRP (mTRP) configuration such that thebase station includes the second set of RRC fields within the CGconfiguration. In such examples, the UE may determine that the first SRSresource set corresponds to the first set of RRC fields and that thesecond SRS resource set corresponds to the second set of RRC fields, asopposed to other different examples in which the UE may not beconfigured to explicitly associate the SRS resource sets with respectivesets of RRC fields. In examples in which the UE is configured with boththe first set of RRC fields and the second set of RRC fields, the UE maybe configured to use a mapping between uplink transmissions and the SRSresource sets. For example, the UE may be configured to use a mappingbetween a fixed order of CG uplink transmissions and the SRS resourcesets. That is, the UE may transmit a first CG uplink transmission usingthe first SRS resource set and the first set of power control parametersand may transmit the remaining CG uplink transmissions using differentSRS resource sets corresponding to a mapping type, which may be anRRC-configured mapping type, for example, a cyclic mapping, a sequentialmapping, or any other mapping type. As another example, the UE mayreceive control information indicating an SRS resource set orderassociated with transmitting CG uplink transmissions. For example, thebase station may transmit an additional RRC field (for example, withinthe RRC signal including the CG configuration) indicating whether thefirst CG uplink transmission is associated with the first SRS resourceset or the second SRS resource set. Alternatively, the base station maytransmit the control information indicating the SRS resource set orderwithin an RRC message different from the RRC signal including the CGconfiguration. As yet another example, the UE may receive an RRC messageindicating one of a limited quantity (for example, four) of possiblemapping configurations (for example, dynamic switching possibilities)that should be used by the UE. That is, the base station may dynamicallytransmit, to the UE, an explicit indication of one of the limitedquantity of possible mapping configurations preconfigured at the UE thatshould be used by the UE.

Particular implementations of the subject matter described in thisdisclosure can be implemented to realize one or more of the followingpotential advantages. By configuring UEs to determine an associationbetween SRS resource sets and corresponding RRC fields, aspects of thepresent disclosure may improve the efficiency of CG uplink transmissionsin wireless networks, such as 5G networks. For example, a base stationmay configure a UE with two SRS resource sets and the UE may moreefficiently associate particular SRS resource sets with respective RRCparameters associated with CG uplink transmissions compared to otherdifferent techniques in which the UE may not be configured by the basestation to associate SRS resource sets with RRC parameters. The UE mayuse particular SRS resource sets, or combinations thereof, in accordancewith RRC signaling from the base station, to interpret RRC parametersand transmit CG uplink transmissions to the base station using the SRSresource sets and referencing the RRC parameters. In someimplementations, the UE may further transmit the CG uplink transmissionsbased on one or more interference conditions, TRP configurations,configured beams, power modes, or any other channel altering conditions.As such, UEs configured to perform such techniques may mitigateambiguity in interpreting RRC parameters associated with CG uplinktransmissions. Further, UEs using such techniques may transmit CG uplinktransmissions a determined mapping pattern, a possible mappingconfiguration (for example, a dynamic switching possibility), or both,resulting in more efficient and effective reception of CG uplinktransmissions at the base station.

Aspects of the disclosure are initially described in the context ofwireless communications systems. Aspects of the disclosure are alsodescribed in the context of process flows. Aspects of the disclosure arefurther illustrated by and described with reference to apparatusdiagrams, system diagrams, and flowcharts that relate to SRI associationfor CG-based TRP physical uplink shared channel (PUSCH) transmission.

FIG. 1 illustrates an example of a wireless communications system 100that supports SRI association for CG-based TRP PUSCH transmission inaccordance with aspects of the present disclosure. The wirelesscommunications system 100 may include one or more base stations 105, oneor more UEs 115, and a core network 130. In some examples, the wirelesscommunications system 100 may be a Long Term Evolution (LTE) network, anLTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR)network. In some examples, the wireless communications system 100 maysupport enhanced broadband communications, ultra-reliable (for example,mission critical) communications, low latency communications,communications with low-cost and low-complexity devices, or anycombination thereof.

The base stations 105 may be dispersed throughout a geographic area toform the wireless communications system 100 and may be devices indifferent forms or having different capabilities. The base stations 105and the UEs 115 may wirelessly communicate via one or more communicationlinks 125. Each base station 105 may provide a coverage area 110 overwhich the UEs 115 and the base station 105 may establish one or morecommunication links 125. The coverage area 110 may be an example of ageographic area over which a base station 105 and a UE 115 may supportthe communication of signals according to one or more radio accesstechnologies.

The UEs 115 may be dispersed throughout a coverage area 110 of thewireless communications system 100, and each UE 115 may be stationary,or mobile, or both at different times. The UEs 115 may be devices indifferent forms or having different capabilities. Some example UEs 115are illustrated in FIG. 1 . The UEs 115 described herein may be able tocommunicate with various types of devices, such as other UEs 115, thebase stations 105, or network equipment (for example, core networknodes, relay devices, integrated access and backhaul (IAB) nodes, orother network equipment), as shown in FIG. 1 .

The base stations 105 may communicate with the core network 130, or withone another, or both. For example, the base stations 105 may interfacewith the core network 130 through one or more backhaul links 120 (forexample, via an S1, N2, N3, or other interface). The base stations 105may communicate with one another over the backhaul links 120 (forexample, via an X2, Xn, or other interface) either directly (forexample, directly between base stations 105), or indirectly (forexample, via core network 130), or both. In some examples, the backhaullinks 120 may be or include one or more wireless links.

One or more of the base stations 105 described herein may include or maybe referred to by a person having ordinary skill in the art as a basetransceiver station, a radio base station, an access point, a radiotransceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or agiga-NodeB (either of which may be referred to as a gNB), a Home NodeB,a Home eNodeB, or other suitable terminology.

A UE 115 may include or may be referred to as a mobile device, awireless device, a remote device, a handheld device, or a subscriberdevice, or some other suitable terminology, in which the “device” mayalso be referred to as a unit, a station, a terminal, or a client, amongother examples. A UE 115 may also include or may be referred to as apersonal electronic device such as a cellular phone, a personal digitalassistant (PDA), a tablet computer, a laptop computer, or a personalcomputer. In some examples, a UE 115 may include or be referred to as awireless local loop (WLL) station, an Internet of Things (IoT) device,an Internet of Everything (IoE) device, or a machine type communications(MTC) device, among other examples, which may be implemented in variousobjects such as appliances, or vehicles, meters, among other examples.

The UEs 115 described herein may be able to communicate with varioustypes of devices, such as other UEs 115 that may sometimes act as relaysas well as the base stations 105 and the network equipment includingmacro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations,among other examples, as shown in FIG. 1 .

The UEs 115 and the base stations 105 may wirelessly communicate withone another via one or more communication links 125 over one or morecarriers. The term “carrier” may refer to a set of radio frequencyspectrum resources having a defined physical layer structure forsupporting the communication links 125. For example, a carrier used fora communication link 125 may include a portion of a radio frequencyspectrum band (for example, a bandwidth part (BWP)) that is operatedaccording to one or more physical layer channels for a given radioaccess technology (for example, LTE, LTE-A, LTE-A Pro, NR). Eachphysical layer channel may carry acquisition signaling (for example,synchronization signals, system information), control signaling thatcoordinates operation for the carrier, user data, or other signaling.The wireless communications system 100 may support communication with aUE 115 using carrier aggregation or multi-carrier operation. A UE 115may be configured with multiple downlink component carriers and one ormore uplink component carriers according to a carrier aggregationconfiguration. Carrier aggregation may be used with both frequencydivision duplexing (FDD) and time division duplexing (TDD) componentcarriers.

In some examples (for example, in a carrier aggregation configuration),a carrier may also have acquisition signaling or control signaling thatcoordinates operations for other carriers. A carrier may be associatedwith a frequency channel (for example, an evolved universal mobiletelecommunication system terrestrial radio access (E-UTRA) absoluteradio frequency channel number (EARFCN)) and may be positioned accordingto a channel raster for discovery by the UEs 115. A carrier may beoperated in a standalone mode in which initial acquisition andconnection may be conducted by the UEs 115 via the carrier, or thecarrier may be operated in a non-standalone mode in which a connectionis anchored using a different carrier (for example, of the same or adifferent radio access technology).

The communication links 125 shown in the wireless communications system100 may include uplink transmissions from a UE 115 to a base station105, or downlink transmissions from a base station 105 to a UE 115.Carriers may carry downlink or uplink communications (for example, in anFDD mode) or may be configured to carry downlink and uplinkcommunications (for example, in a TDD mode).

A carrier may be associated with a particular bandwidth of the radiofrequency spectrum, and in some examples the carrier bandwidth may bereferred to as a “system bandwidth” of the carrier or the wirelesscommunications system 100. For example, the carrier bandwidth may be oneof a number of determined bandwidths for carriers of a particular radioaccess technology (for example, 1.4, 3, 5, 10, 15, 20, 40, or 80megahertz (MHz)). Devices of the wireless communications system 100 (forexample, the base stations 105, the UEs 115, or both) may have hardwareconfigurations that support communications over a particular carrierbandwidth or may be configurable to support communications over one of aset of carrier bandwidths. In some examples, the wireless communicationssystem 100 may include base stations 105 or UEs 115 that supportsimultaneous communications via carriers associated with multiplecarrier bandwidths. In some examples, each served UE 115 may beconfigured for operating over portions (for example, a sub-band, a BWP)or all of a carrier bandwidth.

Signal waveforms transmitted over a carrier may be made up of multiplesubcarriers (for example, using multi-carrier modulation (MCM)techniques such as orthogonal frequency division multiplexing (OFDM) ordiscrete Fourier transform spread OFDM (DFT-S-OFDM)). In a systememploying MCM techniques, a resource element may consist of one symbolduration (for example, a duration of one modulation symbol) and onesubcarrier, in which the symbol duration and subcarrier spacing areinversely related. The number of bits carried by each resource elementmay depend on the modulation scheme (for example, the order of themodulation scheme, the coding rate of the modulation scheme, or both).As such, the more resource elements that a UE 115 receives and thehigher the order of the modulation scheme, the higher the data rate maybe for the UE 115. A wireless communications resource may refer to acombination of a radio frequency spectrum resource, a time resource, anda spatial resource (for example, spatial layers or beams), and the useof multiple spatial layers may further increase the data rate or dataintegrity for communications with a UE 115.

One or more numerologies for a carrier may be supported, in which anumerology may include a subcarrier spacing (Δf) and a cyclic prefix. Acarrier may be divided into one or more BWPs having the same ordifferent numerologies. In some examples, a UE 115 may be configuredwith multiple BWPs. In some examples, a single BWP for a carrier may beactive at a given time and communications for the UE 115 may berestricted to one or more active BWPs.

The time intervals for the base stations 105 or the UEs 115 may beexpressed in multiples of a basic time unit which may, for example,refer to a sampling duration of T_(s)=1/(Δf_(max)·N_(f)) seconds, inwhich Δf_(max) may represent the maximum supported subcarrier spacing,and N_(f) may represent the maximum supported discrete Fourier transform(DFT) size. Time intervals of a communications resource may be organizedaccording to radio frames each having a specified duration (for example,10 milliseconds (ms)). Each radio frame may be identified by a systemframe number (SFN) (for example, ranging from 0 to 1023).

Each frame may include multiple consecutively numbered subframes orslots, and each subframe or slot may have the same duration. In someexamples, a frame may be divided (for example, in the time domain) intosubframes, and each subframe may be further divided into a number ofslots. Alternatively, each frame may include a variable number of slots,and the number of slots may depend on subcarrier spacing. Each slot mayinclude a number of symbol durations (for example, depending on thelength of the cyclic prefix prepended to each symbol duration). In somewireless communications systems 100, a slot may further be divided intomultiple mini-slots containing one or more symbols. Excluding the cyclicprefix, each symbol duration may contain one or more (for example,N_(f)) sampling durations. The duration of a symbol duration may dependon the subcarrier spacing or frequency band of operation.

A subframe, a slot, a mini-slot, or a symbol may be the smallestscheduling unit (for example, in the time domain) of the wirelesscommunications system 100 and may be referred to as a transmission timeinterval (TTI). In some examples, the TTI duration (for example, thenumber of symbol durations in a TTI) may be variable. Additionally oralternatively, the smallest scheduling unit of the wirelesscommunications system 100 may be dynamically selected (for example, inbursts of shortened TTIs (sTTIs)).

Physical channels may be multiplexed on a carrier according to varioustechniques. A physical control channel and a physical data channel maybe multiplexed on a downlink carrier, for example, using one or more oftime division multiplexing (TDM) techniques, frequency divisionmultiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A controlregion (for example, a control resource set (CORESET)) for a physicalcontrol channel may be defined by a number of symbol durations and mayextend across the system bandwidth or a subset of the system bandwidthof the carrier. One or more control regions (for example, CORESETs) maybe configured for a set of the UEs 115. For example, one or more of theUEs 115 may monitor or search control regions for control informationaccording to one or more search space sets, and each search space setmay include one or multiple control channel candidates in one or moreaggregation levels arranged in a cascaded manner. An aggregation levelfor a control channel candidate may refer to a number of control channelresources (for example, control channel elements (CCEs)) associated withencoded information for a control information format having a givenpayload size. Search space sets may include common search space setsconfigured for sending control information to multiple UEs 115 andUE-specific search space sets for sending control information to aspecific UE 115.

Each base station 105 may provide communication coverage via one or morecells, for example a macro cell, a small cell, a hot spot, or othertypes of cells, or any combination thereof. The term “cell” may refer toa logical communication entity used for communication with a basestation 105 (for example, over a carrier) and may be associated with anidentifier for distinguishing neighboring cells (for example, a physicalcell identifier (PCID), a virtual cell identifier (VCID), or others). Insome examples, a cell may also refer to a geographic coverage area 110or a portion of a geographic coverage area 110 (for example, a sector)over which the logical communication entity operates. Such cells mayrange from smaller areas (for example, a structure, a subset ofstructure) to larger areas depending on various factors such as thecapabilities of the base station 105. For example, a cell may be orinclude a building, a subset of a building, or exterior spaces betweenor overlapping with geographic coverage areas 110, among other examples.

A macro cell generally covers a relatively large geographic area (forexample, several kilometers in radius) and may allow unrestricted accessby the UEs 115 with service subscriptions with the network providersupporting the macro cell. A small cell may be associated with alower-powered base station 105, as compared with a macro cell, and asmall cell may operate in the same or different (for example, licensed,unlicensed) frequency bands as macro cells. Small cells may provideunrestricted access to the UEs 115 with service subscriptions with thenetwork provider or may provide restricted access to the UEs 115 havingan association with the small cell (for example, the UEs 115 in a closedsubscriber group (CSG), the UEs 115 associated with users in a home oroffice). A base station 105 may support one or multiple cells and mayalso support communications over the one or more cells using one ormultiple component carriers.

In some examples, a carrier may support multiple cells, and differentcells may be configured according to different protocol types (forexample, MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB))that may provide access for different types of devices.

In some examples, a base station 105 may be movable may providecommunication coverage for a moving geographic coverage area 110. Insome examples, different geographic coverage areas 110 associated withdifferent technologies may overlap, but the different geographiccoverage areas 110 may be supported by the same base station 105. Inother examples, the overlapping geographic coverage areas 110 associatedwith different technologies may be supported by different base stations105. The wireless communications system 100 may include, for example, aheterogeneous network in which different types of the base stations 105provide coverage for various geographic coverage areas 110 using thesame or different radio access technologies.

The wireless communications system 100 may support synchronous orasynchronous operation. For synchronous operation, the base stations 105may have similar frame timings, and transmissions from different basestations 105 may be approximately aligned in time. For asynchronousoperation, the base stations 105 may have different frame timings, andtransmissions from different base stations 105 may, in some examples,not be aligned in time. The techniques described herein may be used foreither synchronous or asynchronous operations.

Some UEs 115 may be configured to employ operating modes that reducepower consumption, such as half-duplex communications (for example, amode that supports one-way communication via transmission or reception,but not transmission and reception simultaneously). In some examples,half-duplex communications may be performed at a reduced peak rate.Other power conservation techniques for the UEs 115 include entering apower saving deep sleep mode if not engaging in active communications,operating over a limited bandwidth (for example, according to narrowbandcommunications), or a combination of these techniques. For example, someUEs 115 may be configured for operation using a narrowband protocol typethat is associated with a defined portion or range (for example, set ofsubcarriers or resource blocks (RBs)) within a carrier, within aguard-band of a carrier, or outside of a carrier.

The wireless communications system 100 may be configured to supportultra-reliable communications or low-latency communications, or variouscombinations thereof. For example, the wireless communications system100 may be configured to support ultra-reliable low-latencycommunications (URLLC) or mission critical communications. The UEs 115may be designed to support ultra-reliable, low-latency, or criticalfunctions (for example, mission critical functions). Ultra-reliablecommunications may include private communication or group communicationand may be supported by one or more mission critical services such asmission critical push-to-talk (MCPTT), mission critical video (MCVideo),or mission critical data (MCData). Support for mission criticalfunctions may include prioritization of services, and mission criticalservices may be used for public safety or general commercialapplications. The terms ultra-reliable, low-latency, mission critical,and ultra-reliable low-latency may be used interchangeably herein.

In some examples, a UE 115 may also be able to communicate directly withother UEs 115 over a device-to-device (D2D) communication link 135 (forexample, using a peer-to-peer (P2P) or D2D protocol). One or more UEs115 utilizing D2D communications may be within the geographic coveragearea 110 of a base station 105. Other UEs 115 in such a group may beoutside the geographic coverage area 110 of a base station 105 or beotherwise unable to receive transmissions from a base station 105. Insome examples, groups of the UEs 115 communicating via D2Dcommunications may utilize a one-to-many (1:M) system in which each UE115 transmits to every other UE 115 in the group. In some examples, abase station 105 facilitates the scheduling of resources for D2Dcommunications. In other cases, D2D communications are carried outbetween the UEs 115 without the involvement of a base station 105.

The core network 130 may provide user authentication, accessauthorization, tracking, Internet Protocol (IP) connectivity, and otheraccess, routing, or mobility functions. The core network 130 may be anevolved packet core (EPC) or 5G core (5GC), which may include at leastone control plane entity that manages access and mobility (for example,a mobility management entity (MME), an access and mobility managementfunction (AMF)) and at least one user plane entity that routes packetsor interconnects to external networks (for example, a serving gateway(S-GW), a Packet Data Network (PDN) gateway (P-GW), or a user planefunction (UPF)). The control plane entity may manage non-access stratum(NAS) functions such as mobility, authentication, and bearer managementfor the UEs 115 served by the base stations 105 associated with the corenetwork 130. User IP packets may be transferred through the user planeentity, which may provide IP address allocation as well as otherfunctions. The user plane entity may be connected to IP services 150 forone or more network operators. The IP services 150 may include access tothe Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or aPacket-Switched Streaming Service.

Some of the network devices, such as a base station 105, may includesubcomponents such as an access network entity 140, which may be anexample of an access node controller (ANC). Each access network entity140 may communicate with the UEs 115 through one or more other accessnetwork transmission entities 145, which may be referred to as radioheads, smart radio heads, or TRPs. Each access network transmissionentity 145 may include one or more antenna panels. In someconfigurations, various functions of each access network entity 140 orbase station 105 may be distributed across various network devices (forexample, radio heads and ANCs) or consolidated into a single networkdevice (for example, a base station 105).

The wireless communications system 100 may operate using one or morefrequency bands, typically in the range of 300 megahertz (MHz) to 300gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known asthe ultra-high frequency (UHF) region or decimeter band because thewavelengths range from approximately one decimeter to one meter inlength. The UHF waves may be blocked or redirected by buildings andenvironmental features, but the waves may penetrate structuressufficiently for a macro cell to provide service to the UEs 115 locatedindoors. The transmission of UHF waves may be associated with smallerantennas and shorter ranges (for example, less than 100 kilometers)compared to transmission using the smaller frequencies and longer wavesof the high frequency (HF) or very high frequency (VHF) portion of thespectrum below 300 MHz.

The wireless communications system 100 may also operate in a super highfrequency (SHF) region using frequency bands from 3 GHz to 30 GHz, alsoknown as the centimeter band, or in an extremely high frequency (EHF)region of the spectrum (for example, from 30 GHz to 300 GHz), also knownas the millimeter band. In some examples, the wireless communicationssystem 100 may support millimeter wave (mmW) communications between theUEs 115 and the base stations 105, and EHF antennas of the respectivedevices may be smaller and more closely spaced than UHF antennas. Insome examples, this may facilitate use of antenna arrays within adevice. The propagation of EHF transmissions, however, may be subject toeven greater atmospheric attenuation and shorter range than SHF or UHFtransmissions. The techniques disclosed herein may be employed acrosstransmissions that use one or more different frequency regions, anddesignated use of bands across these frequency regions may differ bycountry or regulating body.

The wireless communications system 100 may utilize both licensed andunlicensed radio frequency spectrum bands. For example, the wirelesscommunications system 100 may employ License Assisted Access (LAA),LTE-Unlicensed (LTE-U) radio access technology, or NR technology in anunlicensed band such as the 5 GHz industrial, scientific, and medical(ISM) band. If operating in unlicensed radio frequency spectrum bands,devices such as the base stations 105 and the UEs 115 may employ carriersensing for collision detection and avoidance. In some examples,operations in unlicensed bands may be based on a carrier aggregationconfiguration in conjunction with component carriers operating in alicensed band (for example, LAA). Operations in unlicensed spectrum mayinclude downlink transmissions, uplink transmissions, P2P transmissions,or D2D transmissions, among other examples.

A base station 105 or a UE 115 may be equipped with multiple antennas,which may be used to employ techniques such as transmit diversity,receive diversity, multiple-input multiple-output (MIMO) communications,or beamforming. The antennas of a base station 105 or a UE 115 may belocated within one or more antenna arrays or antenna panels, which maysupport MIMO operations or transmit or receive beamforming. For example,one or more base station antennas or antenna arrays may be co-located atan antenna assembly, such as an antenna tower. In some examples,antennas or antenna arrays associated with a base station 105 may belocated in diverse geographic locations. A base station 105 may have anantenna array with a number of rows and columns of antenna ports thatthe base station 105 may use to support beamforming of communicationswith a UE 115. Likewise, a UE 115 may have one or more antenna arraysthat may support various MIMO or beamforming operations. Additionally oralternatively, an antenna panel may support radio frequency beamformingfor a signal transmitted via an antenna port.

The base stations 105 or the UEs 115 may use MIMO communications toexploit multipath signal propagation and increase the spectralefficiency by transmitting or receiving multiple signals via differentspatial layers. Such techniques may be referred to as spatialmultiplexing. The multiple signals may, for example, be transmitted bythe transmitting device via different antennas or different combinationsof antennas. Likewise, the multiple signals may be received by thereceiving device via different antennas or different combinations ofantennas. Each of the multiple signals may be referred to as a separatespatial stream and may carry bits associated with the same data stream(for example, the same codeword) or different data streams (for example,different codewords). Different spatial layers may be associated withdifferent antenna ports used for channel measurement and reporting. MIMOtechniques include single-user MIMO (SU-MIMO), in which multiple spatiallayers are transmitted to the same receiving device, and multiple-userMIMO (MU-MIMO), in which multiple spatial layers are transmitted tomultiple devices.

Beamforming, which may also be referred to as spatial filtering,directional transmission, or directional reception, is a signalprocessing technique that may be used at a transmitting device or areceiving device (for example, a base station 105, a UE 115) to shape orsteer an antenna beam (for example, a transmit beam, a receive beam)along a spatial path between the transmitting device and the receivingdevice. Beamforming may be achieved by combining the signalscommunicated via antenna elements of an antenna array such that somesignals propagating at particular orientations with respect to anantenna array experience constructive interference while othersexperience destructive interference. The adjustment of signalscommunicated via the antenna elements may include a transmitting deviceor a receiving device applying amplitude offsets, phase offsets, or bothto signals carried via the antenna elements associated with the device.The adjustments associated with each of the antenna elements may bedefined by a beamforming weight set associated with a particularorientation (for example, with respect to the antenna array of thetransmitting device or receiving device, or with respect to some otherorientation).

A base station 105 or a UE 115 may use beam sweeping techniques as partof beam forming operations. For example, a base station 105 may usemultiple antennas or antenna arrays (for example, antenna panels) toconduct beamforming operations for directional communications with a UE115. Some signals (for example, synchronization signals, referencesignals, beam selection signals, or other control signals) may betransmitted by a base station 105 multiple times in differentdirections. For example, the base station 105 may transmit a signalaccording to different beamforming weight sets associated with differentdirections of transmission. Transmissions in different beam directionsmay be used to identify (for example, by a transmitting device, such asa base station 105, or by a receiving device, such as a UE 115) a beamdirection for later transmission or reception by the base station 105.

Some signals, such as data signals associated with a particularreceiving device, may be transmitted by a base station 105 in a singlebeam direction (for example, a direction associated with the receivingdevice, such as a UE 115). In some examples, the beam directionassociated with transmissions along a single beam direction may bedetermined based on a signal that was transmitted in one or more beamdirections. For example, a UE 115 may receive one or more of the signalstransmitted by the base station 105 in different directions and mayreport to the base station 105 an indication of the signal that the UE115 received with a highest signal quality or an otherwise acceptablesignal quality.

In some examples, transmissions by a device (for example, by a basestation 105 or a UE 115) may be performed using multiple beamdirections, and the device may use a combination of digital precoding orradio frequency beamforming to generate a combined beam for transmission(for example, from a base station 105 to a UE 115). The UE 115 mayreport feedback that indicates precoding weights for one or more beamdirections, and the feedback may correspond to a configured number ofbeams across a system bandwidth or one or more sub-bands. The basestation 105 may transmit a reference signal (for example, acell-specific reference signal (CRS), a channel state informationreference signal (CSI-RS)), which may be precoded or unprecoded. The UE115 may provide feedback for beam selection, which may be a precodingmatrix indicator (PMI) or codebook-based feedback (for example, amulti-panel type codebook, a linear combination type codebook, a portselection type codebook). Although these techniques are described withreference to signals transmitted in one or more directions by a basestation 105, a UE 115 may employ similar techniques for transmittingsignals multiple times in different directions (for example, foridentifying a beam direction for subsequent transmission or reception bythe UE 115) or for transmitting a signal in a single direction (forexample, for transmitting data to a receiving device).

A receiving device (for example, a UE 115) may try multiple receiveconfigurations (for example, directional listening) if receiving varioussignals from the base station 105, such as synchronization signals,reference signals, beam selection signals, or other control signals. Forexample, a receiving device may try multiple receive directions byreceiving via different antenna subarrays, by processing receivedsignals according to different antenna subarrays, by receiving accordingto different receive beamforming weight sets (for example, differentdirectional listening weight sets) applied to signals received atmultiple antenna elements of an antenna array, or by processing receivedsignals according to different receive beamforming weight sets appliedto signals received at multiple antenna elements of an antenna array,any of which may be referred to as “listening” according to differentreceive configurations or receive directions. In some examples, areceiving device may use a single receive configuration to receive alonga single beam direction (for example, if receiving a data signal). Thesingle receive configuration may be aligned in a beam directiondetermined based on listening according to different receiveconfiguration directions (for example, a beam direction determined tohave a highest signal strength, highest signal-to-noise ratio (SNR), orotherwise acceptable signal quality based on listening according tomultiple beam directions).

The wireless communications system 100 may be a packet-based networkthat operates according to a layered protocol stack. In the user plane,communications at the bearer or Packet Data Convergence Protocol (PDCP)layer may be IP-based. A Radio Link Control (RLC) layer may performpacket segmentation and reassembly to communicate over logical channels.A Medium Access Control (MAC) layer may perform priority handling andmultiplexing of logical channels into transport channels. The MAC layermay also use error detection techniques, error correction techniques, orboth to support retransmissions at the MAC layer to improve linkefficiency. In the control plane, the RRC protocol layer may provideestablishment, configuration, and maintenance of an RRC connectionbetween a UE 115 and a base station 105 or a core network 130 supportingradio bearers for user plane data. At the physical layer, transportchannels may be mapped to physical channels.

The UEs 115 and the base stations 105 may support retransmissions ofdata to increase the likelihood that data is received successfully.Hybrid automatic repeat request (HARQ) feedback is one technique forincreasing the likelihood that data is received correctly over acommunication link 125. HARQ may include a combination of errordetection (for example, using a cyclic redundancy check (CRC)), forwarderror correction (FEC), and retransmission (for example, automaticrepeat request (ARQ)). HARQ may improve throughput at the MAC layer inpoor radio conditions (for example, low signal-to-noise conditions). Insome examples, a device may support same-slot HARQ feedback, in whichthe device may provide HARQ feedback in a specific slot for datareceived in a previous symbol in the slot. In other cases, the devicemay provide HARQ feedback in a subsequent slot, or according to someother time interval.

In some cases, a base station 105 may configure a UE 115 with a CGconfiguration for CG uplink transmissions. For example, the base station105 may transmit the CG configuration indicating a type of a CG, such asa Type 1 CG, using RRC signaling that configures and activates the CGuplink transmissions. To support CG uplink transmissions, the basestation 105 may configure the UE 115 with one or more SRS resource setsthat the UE 115 may reference if transmitting uplink information to thebase station 105. In some cases, the UE 115 may have difficulty indetermining (for example, may not be configured to determine) which SRSresource set to use in interpreting RRC parameters configured by thebase station 105. That is, it may be ambiguous, to the UE 115, which SRSresource set to use if applying CG uplink transmission related RRCparameters (for example, first parameters such as a firstsrs-ResourceIndicator parameter and a first precodingAndNumberOfLayersparameter) to one or more uplink transmissions. For example, ininterpreting a srs-ResourceIndicator parameter, it may be ambiguous tothe UE whether to use a first SRS resource set or a second SRS resourceset. Similarly, for the second parameter such as theprecodingAndNumberOfLayers parameter, as the interpretation of such aparameter may depend on a quantity of SRS ports, and a selected SRSresource, such that the UE may have difficulty in determining the SRSresource set to use. Further, in cases in which the base station 105 mayuse an mTRP configuration, the base station 105 may transmit a secondset of RRC parameters or a second set of RRC fields (for example, secondfields such as a second srs-ResourceIndicator field and a second fieldsuch as a second precodingAndNumberOfLayers field). As such, the UE 115may experience increased difficulty in interpreting such RRC signaling.

In some examples, the UE 115 may be configured to determine which SRSresource set to use if interpreting the CG configuration. For example,the base station 105 may configure the UE 115 with multiple SRS resourcesets, such as two SRS resource sets, and the base station 105 mayrefrain from configuring the second set of RRC fields. For example, thebase station 105 may use an sTRP configuration, or any otherconfiguration, such that the base station 105 may refrain fromconfiguring the UE 115 with the second set of RRC fields. In such anexample, the UE 115 may associate the first set of RRC fields with thefirst SRS resource set. Additionally or alternatively, in some examples,the base station 105 may include an explicit indication within the CGconfiguration that may indicate which SRS resource set may be associatedwith the first set of RRC fields.

In other examples, the base station 105 may configure the UE 115 withtwo SRS resource sets and the base station 105 may configure the secondset of RRC fields. For example, the base station 105 may use an mTRPconfiguration, or any other configuration, such that the base station105 may configure the UE 115 with the second set of RRC fields. In suchan example, the UE 115 may determine that the first SRS resource setcorresponds to the first set of RRC fields and that the second SRSresource set corresponds to the second set of RRC fields. In examples inwhich the UE 115 may be configured with both the first set of RRC fieldsand the second set of RRC fields, the UE 115 may be configured to use adetermined mapping between uplink transmissions and SRS resource sets.

FIG. 2 illustrates an example of a wireless communications system 200that supports SRI association for CG-based TRP PUSCH transmission inaccordance with aspects of the present disclosure. The wirelesscommunications system 200 may implement or be implemented to realizeaspects of the wireless communications system 100. For example, thewireless communications system 200 may illustrate communications betweena UE 115-a and a base station 105-a, which may be examples ofcorresponding devices, including with reference to FIG. 1 . The basestation 105-a may configure the UE 115-a with a CG configuration 205 formultiple CG uplink transmissions using multiple beams 230 that may bedirected towards respective TRPs 240 at the base station 105-a. In someexamples, the UE 115-a may associate each CG uplink transmission with anSRS resource set 235. As such, the UE 115-a may follow techniquesdescribed herein to transmit the CG uplink transmissions using thecorrect SRS resource set 235 or order of SRS resource sets 235.

In the wireless communications system 200, the base station 105-a mayconfigure the UE 115-a with a CG configuration 205 for CG uplinktransmissions. In some examples, the base station 105-a may transmit theCG configuration 205 to the UE 115-a via RRC signaling, such as the RRCsignaling illustrated as being sent by the base station 105-a over adownlink 210. The base station 105-a may indicate, via the CGconfiguration 205, whether a CG uplink transmission is associated with aType 1 CG (which may be equivalently referred to as an uplink CG Type 1)or a Type 2 CG (which may be equivalently referred to as an uplink CGType 2). For example, the base station 105-a may transmit the CGconfiguration 205 which may indicate either a Type 1 CG or a Type 2 CG.In cases in which the CG configuration 205 indicates a Type 1 CG, thebase station 105-a may, in addition to configuring uplink transmissionparameters at the UE 115-a via RRC signaling, activate or deactivate agrant for the CG uplink transmissions via RRC signaling. In cases ofType 1 CG, the base station 105-a may also deactivate the CGconfiguration 205 via RRC signaling.

In cases in which the CG configuration 205 indicates a Type 1 CG, the CGconfiguration 205 may configure, indicate, or otherwise provide one ormore transmission parameters to the UE 115-a that the UE 115-a may usefor the CG uplink transmissions. For example, the base station 105-a maytransmit the CG configuration 205 to the UE 115-a including orindicating one or both of a ConfiguredGrantConfig parameter or an rrcConfiguredUplinkGrant parameter.

In some cases, base station 105-a may configure various transmissionparameters corresponding to the CG uplink transmissions via the CGconfiguration 205. In some examples, the configured transmission powercontrol parameters may include a value corresponding to the target powerspectral density (for example, a P0 value), a value that indicateswhether to enable or disable fractional power control for the CG uplinktransmissions (for example, an alpha value), a closed loop index, or anycombination thereof. As such, the base station 105-a may configure thepower control parameters corresponding to the CG uplink transmissions inthe CG configuration 205 (for example, via RRC signaling, such as aConfiguredGrantConfig message). For example, the ConfiguredGrantConfigmessage may include a p0-PUSCH-Alpha field which may configure the P0value and the alpha value and may also include a powerControlLoopToUsefield which may configure the closed loop index value for the CG uplinktransmission. Further, the CG configuration 205 may indicate one or moreof an offset 220, a duration 225, or any other parameter, which mayschedule the UE 115-a to signal uplink transmissions (for example, Txsas illustrated in uplink 215) over specific durations (for example,slots, spans, symbols, transmission time intervals (TTIs)). For example,in wireless communications system 200, the UE 115-a may be configuredwith a TTI spanning three slots. That is, the duration 225 of the TTImay be three slots. Further, in such examples, the UE 115-a may beconfigured with an offset 220 of one slot. As such, the UE 115-a may beconfigured to transmit uplink information (for example, CG uplinktransmissions) over the second slot of the configured TTI.

In some cases, the UE 115-a may also receive, from the base station105-a via the CG configuration 205, a configuration of a path lossreference signals (PL-RS). In cases in which the CG configuration 205indicates the Type 1 CG, the base station 105-a may configure an initialtransmission via a pathlossReferenceIndex field in anrrc-ConfiguredUplinkGrant parameter. In some cases, the base station105-a may request retransmission of the CG uplink transmissions from theUE 115-a via a scheduling DCI message which may include an SRI fieldthat indicates the PL-RS configuration.

The UE 115-a may be configured to transmit CG uplink transmissions inaccordance with a “codebook” based transmission or a “non-codebook”based transmission. As such, the UE 115-a may be configured to use anSRS resource set 235 with a usage set to codebook or non-codebook,respectively. In cases in which the SRS resource set 235 has a usage setto codebook, the UE 115-a may be configured with an SRS resource limit.For example, the UE 115-a may be configured with, for example, aquantity of SRS resources, such as a limited quantity of four SRSresources, within the SRS resource set 235. In such an example, each SRSresource may be RRC configured (for example, via RRC signaling from thebase station 105-a) with a quantity of ports (for example, indicated bya parameter: nrofSRS-Ports). In some cases, the base station 105-a mayindicate a single SRS resource from the SRS resource set 235, within anuplink DCI message, such as a DCI message scheduling uplinkretransmissions. In such cases, the quantity of ports configured for theindicated SRS resource, may indicate the quantity of antenna ports forCG uplink transmissions. Further, the UE 115-a may transmit PUSCH (forexample, CG uplink transmissions) using a same spatial domain filter(for example, a same beam 230) as the SRS resource indicated by the basestation 105-a. In some cases, the base station 105-a may indicate a rankand a precoder for PUSCH (for example, the CG uplink transmissions), tothe UE 115-a. For example, the base station 105-a may transmit, within aDCI field different than the SRI field (for example, a field forprecoding information and quantity of layers), a quantity of layers anda transmitted precoding matrix indicator (TPMI) for scheduled CG uplinktransmissions.

In cases in which the SRS resource set 235 has a usage set tonon-codebook, the UE 115-a may be configured with as SRS resource limit.For example, the UE 115-a may be configured to use, for example, aquantity of SRS resources, such as a limited quantity of four SRSresources. In such an example, each SRS resource may be associated witha single, respective port. In some cases, the base station 105-a mayindicate one or more SRS resources, from the SRS resource set 235,within an uplink DCI message (for example, a retransmission schedulingDCI message). The quantity of SRS resources indicated in such a DCI mayindicate the rank for the PUSCH the scheduling DCI message may beassociated with. For example, the quantity of SRS resources indicated ina PUSCH scheduling DCI message may indicate, to the UE 115-a, thequantity of transmission layers the UE 115-a may use if transmitting CGuplink transmissions scheduled by such a DCI. Further, the PUSCH (forexample, CG uplink transmissions) may be transmitted with a sameprecoder, spatial domain filter (for example, beam 230), and any othertransmission parameter, associated with the one or more SRS resourcesindicated by the base station 105-a. In some cases, the base station105-a may configure the UE 115-a with an SRS resource set 235 with anon-zero power (NZP) CSI-RS resource (for example, using RRC parametersassociated with CSI-RSs). In such cases, the UE 115-a may determine (forexample, calculate) a precoder used for the SRS resources within the SRSresource set 235 based on measuring the associated NZP CSI-RS resource.

In some examples, it may be advantageous for the base station 105-a toreceive CG uplink transmissions from the UE 115-a at multiple TRPs 240or multiple panels. For example, as a result of receiving the CG uplinktransmissions from the UE 115-a at the multiple TRPs 240 or the multiplepanels, the UE 115-a and the base station 105-a may support greaterrobustness and reliability for the CG uplink transmissions. For example,if a first TRP 240-a at the base station 105-a is blocked via a physicalobject (such as a tree, a moving car, a building, among other examples)or the first TRP 240-a experiences interference (such as interferencefrom signaling from other UEs 115 or self-interference), the basestation 105-a may decode the uplink transmissions at a second TRP 240-b,increasing uplink reception reliability at the base station 105-a. Insome examples, the TRP 240-b may be located at a secondary base station105, and the UE 115-a may transmit the CG uplink transmissions tomultiple base stations 105. In other words, the TRP 240-a and the TRP240-b may be located at same (or approximately the same) physicallocations or may be located at different physical locations withoutexceeding the scope of the present disclosure.

Additionally or alternatively, the UE 115-a may transmit CG uplinktransmissions with repetition. In some examples, the UE 115-a mayreceive (from the base station 105-a and, for example, via RRC signalingor DCI) signaling indicating a type of repetition that the UE 115-a mayuse for transmitting the CG uplink transmissions, such as a Type Arepetition or a Type B repetition. In examples in which the UE 115-areceives signaling indicating the Type A repetition, the UE 115-a maytransmit over different CG uplink transmission occasions that correspondto a same transport block and the different CG uplink transmissionoccasions may be in different slots. In examples in which the UE 115-areceives signaling indicating the Type B repetition, the UE 115-a maytransmit different CG uplink transmission occasions that correspond to asame transport block and the different CG uplink transmission occasionsmay be in different mini-slots (which may be smaller in symbol size orduration than slots).

The base station 105-a may configure a quantity of repetitions for a CGuplink transmission via RRC signaling or dynamically via DCI (forexample, via a time domain resource assignment (TDRA) field that is partof a DCI message). In some cases, the UE 115-a may transmit therepetitions of the CG uplink transmission using a same beam 230. Forexample, the UE 115-a may transmit the repetitions of the CG uplinktransmission using a beam 230-a and the base station 105-a may receivethe repetitions of the CG uplink transmission sent using the beam 230-aat a single TRP 240 (or, in some examples, may attempt to receive thesingle beam transmissions at multiple TRPs 240). In such examples inwhich the UE 115-a transmits the repetitions of the CG uplinktransmission via the same beam 230, the UE 115-a may transmit therepetitions of the CG uplink transmission using a same set oftransmission power control parameters.

In some other cases, if the base station 105-a intends to receivedifferent uplink repetitions at different TRPs 240, different panels, ordifferent antennas, the base station 105-a may configure the UE 115-a touse multiple beams 230 (such as the beam 230-a and a beam 230-b) andmultiple sets of power control parameters. For example, repetitions ofthe CG uplink transmission may belong to or may be associated withmultiple (for example, two) SRS resource sets 235 and each SRS resourceset 235 may be associated with a beam 230 and a set of power controlparameters. In other words, the scheduled or configured repetitions ofthe CG uplink transmission may be partitioned into two distinct sets ofrepetitions and the two sets of repetitions may correspond to two SRSresource sets 235 (such that each set of repetitions corresponds to adifferent SRS resource set 235 and, accordingly, a different beam 230and a different set of power control parameters). As described herein,an SRS resource set 235-a may be associated with the beam 230 a and afirst set of power control parameters and an SRS resource set 235-b maybe associated with the beam 230-b and a second set of power controlparameters. In some examples, and as a result of the correspondencebetween the two sets of repetitions and the two SRS resource sets 235,the base station 105-a may indicate two beams 230 or two sets of powercontrol parameters, or both, for two sets of repetitions by twocorresponding SRI fields in a DCI message (for example, a retransmissionscheduling DCI for a Type 1 CG).

In some deployments, for example, the UE 115-a and the base station105-a may support a dynamic switching between single-TRP (sTRP)operation and multi-TRP (mTRP) operation and the UE 115-a and the basestation 105-a may leverage the correspondence between the two sets ofrepetitions and the two SRS resource sets 235 for the dynamic switching.In such deployments, the base station 105-a may alternate between ansTRP-based receiving of a PUSCH transmission and an mTRP-based receivingof the PUSCH transmission, which may include indicating the UE 115-a touse one SRS resource set 235 for sTRP operation and two SRS resourcesets 235 for mTRP operation. To achieve such a dynamic switching betweensTRP operation and mTRP operation for PUSCH transmissions, the basestation 105-a may transmit a DCI message to the UE 115-a including a bitfield for dynamic switching that indicates which SRS resource set 235and corresponding set of power control parameters to use for differentrepetitions of the PUSCH transmission.

For example, the bit field for dynamic switching may have a size of twobits and may indicate one of four configurations for the PUSCHtransmission (for example, for the two sets of repetitions of the PUSCHtransmission). If the bit field for dynamic switching has a value ‘00’,the UE 115-a may use the SRS resource set 235-a that is associated withthe first set of power control parameters and the beam 230-a for thePUSCH transmission (for example, for each repetition of the PUSCHtransmission). In such examples in which the UE 115-a uses the first setof power control parameters and the beam 230-a for the repetitions ofthe PUSCH transmission, the base station 105-a may receive therepetitions of the PUSCH transmission via one TRP 240 (such as the TRP240-a). Alternatively, if the bit field for dynamic switching has avalue ‘01’, the UE 115-a may use the SRS resource set 235-b that isassociated with the second set of control parameters and the beam 230-bfor the PUSCH transmission (for example, for each repetition of thePUSCH transmission). In such examples in which the UE 115-a uses thesecond set of power control parameters and the beam 230-b for therepetitions of the PUSCH transmission, the base station 105-a mayreceive the repetitions of the PUSCH transmission via one TRP 240 (suchas the TRP 240-b).

Alternatively, if the bit field for dynamic switching has a value ‘10’,the UE 115-a may alternate between the SRS resource set 235-a and theSRS resource set 235-b for the repetitions of the PUSCH transmission inaccordance with a first order pattern. For example, the UE 115-a may usethe first set of power control parameters and the beam 230-a for a firstone or more instances of the PUSCH transmission and may use the secondset of power control parameters and the beam 230-b for a second one ormore instances of the PUSCH transmission. In such examples, the basestation 105-a may receive the first one or more instances of therepetitions of the PUSCH transmission via the TRP 240-a and may receivethe second one or more instances of the repetitions of the PUSCHtransmission via the TRP 240-b. Alternatively, if the bit field fordynamic switching has a value ‘11’, the UE 115-a may alternate betweenthe SRS resource set 235-a and the SRS resource set 235-b in accordancewith a second order pattern. For example, the UE 115-a may use thesecond set of power control parameters and the beam 230-b for a firstone or more instances of the PUSCH transmission and may use the firstset of power control parameters and the beam 230-a for a second one ormore instances of the PUSCH transmission. In such examples, the basestation 105-a may receive the first one or more instances of therepetitions of the PUSCH transmission via the TRP 240-b and may receivethe second one or more instances of the repetitions of the PUSCHtransmission via the TRP 240-a. Such order patterns and transmissionmapping is described in more detail with reference to FIG. 3 .

To support an extension of PUSCH repetition with two beams 230 and twosets of power control parameters to CG uplink transmissions (forexample, to CG-PUSCH transmissions), the base station 105-a mayadditionally configure the second set of power control parameters forthe UE 115-a via RRC signaling. In other words, the base station 105-amay configure the UE 115-a with the first set of power controlparameters for the beam 230-a (which may both be associated with the SRSresource set 235-a) and the second set of power control parameters forthe beam 230-b (which may both be associated with the SRS resource set235-b) via RRC signaling. For example, the base station 105-a mayinclude a second pathlossReferenceIndex parameter, a secondsrs-ResourceIndicator parameter, and a second precodingAndNumberOfLayersparameter in the rrc-ConfiguredUplinkGrant parameter and may include asecond p0-PUSCH-Alpha parameter and a second powerControlLoopToUseparameter in the ConfiguredGrantConfig parameter.

For a Type 1 CG, the base station 105 a may both configure and activatethe SRS resource sets 235 for the CG uplink transmission from the UE 115a via RRC signaling. For example, the CG configuration 205 may configurethe UE 115 a with one or more SRS resource sets 235 and transmissionparameters (for example, the sets of power control parameters)associated therewith, and the CG configuration 205 may also activate theuse of such SRS resource sets 235 for the CG uplink transmission. Insuch examples, the base station 105 a may refrain from transmitting aDCI message activating the SRS resource sets 235

In some examples, the base station 105-a may provide informationotherwise indicated in an SRI field (for example, within a DCI message)using one or more RRC parameters. For example, the base station 105-amay transmit an SRI, precoding information, or a rank, among otherexamples, using RRC parameters, such as an srs-ResourceIndicatorparameter (for the SRI) and a precodingAndNumberOfLayers parameter (forthe precoding information and the rank).

However, in some cases, the UE 115-a may have difficulty in determiningwhich SRS resource set 235 to use if interpreting the RRC parameters.That is, it may be difficult to determine which SRS resource set 235 touse if applying CG uplink transmission related RRC parameters to one ormore uplink transmissions. For example, in interpreting thesrs-ResourceIndicator parameter, it may be ambiguous to the UE 115-awhether to use the first SRS resource set 235-a or the second SRSresource set 235-b. Similarly, for the precodingAndNumberOfLayersparameter, as the interpretation of such a parameter may depend on aquantity of SRS ports, and a selected SRS resource, such that the UE115-a may have difficulty in determining the SRS resource set 235 touse.

In some examples, the UE 115-a may be configured to determine which SRSresource set 235 to use if interpreting CG configuration 205. Forexample, the base station 105-a may configure the UE 115-a with two SRSresource sets 235 (for example, for codebook and non-codebook PUSCHtransmissions), in which in some examples, the base station 105-a mayrefrain from configuring the second fields in RRC signaling. Forexample, the base station 105-a may use an sTRP configuration, or anyother configuration such that the base station 105-a may refrain fromconfiguring the UE 115-a with the second srs-ResourceIndicator field andthe second precodingAndNumberOfLayers field within therrc-ConfiguredUplinkGrant field. In such an example, the UE 115-a mayassociate the first srs-ResourceIndicator field and the firstprecodingAndNumberOfLayers field with the first SRS resource set 235-a.In such examples, the first SRS resource set 235-a may be the SRSresource set 235 with a lower SRS resource set ID. Additionally oralternatively, the base station 105-a may include a field within therrc-ConfiguredUplinkGrant field that may indicate which SRS resource set235 may be associated with the first srs-ResourceIndicator field and thefirst precodingAndNumberOfLayers field. In other words, the base station105-a may include an additional field within RRC signaling, indicatingto the UE 115-a whether to use the first SRS resource set 235-a or thesecond SRS resource set 235-b if interpreting the RRC signaling (forexample, the first srs-ResourceIndicator field and the firstprecodingAndNumberOfLayers field). In another example, the base station105-a may configure the UE 115-a with two SRS resource sets 235 (forexample, for codebook and non-codebook PUSCH transmissions), in which insome examples, the base station 105-a may configure the second fields inRRC signaling. For example, the base station 105-a may use an mTRPconfiguration, or any other configuration such that the base station105-a may configure the UE 115-a with the second srs-ResourceIndicatorfield and the second precodingAndNumberOfLayers field within therrc-ConfiguredUplinkGrant field. In such an example, the UE 115-a maydetermine that the first SRS resource set 235-a corresponds to the firstsrs-ResourceIndicator field and the first precodingAndNumberOfLayersfield and that the second SRS resource set 235-b corresponds to thesecond srs-ResourceIndicator field and the secondprecodingAndNumberOfLayers field.

In cases in which the UE 115-a may be configured with both the firstsrs-ResourceIndicator and precodingAndNumberOfLayers parameters and thesecond srs-ResourceIndicator and precodingAndNumberOfLayers parameters,the UE 115-a may be configured to use a specific mapping between uplinktransmissions and SRS resource sets 235 if transmitting uplinkrepetitions to the base station 105-a. For example, the UE 115-a may beconfigured according to a fixed order of uplink repetitions. That is,the UE 115-a may transmit a first uplink repetition using the first SRSresource set 235-a and may transmit the remaining uplink repetitions inaccordance with an RRC configured mapping type, for example, a cyclicmapping (for example, 1212), a sequential mapping (for example, 1122),or any other mapping type. In another example, the UE 115-a may receivean RRC configuration (for example, in rrc-ConfiguredUplinkGrant) thatmay indicate the SRS resource set 235 order associated with transmittinguplink repetitions. For example, the base station 105-a may transmit anadditional RRC configuration (for example, an additional field)indicating whether the first uplink repetition in time may be associatedwith the first SRS resource set 235-a or the second SRS resource set235-b. In yet another example, the UE 115-a may receive an RRC messageindicating one of four possible mapping configurations (for example,dynamic switching possibilities as described with reference to FIG. 3B).That is, the base station 105-a may transmit an additional RRCconfiguration to the UE 115-a indicating one of four mappingconfigurations.

Configuring UEs 115 with the techniques may enable such UEs 115 todetermine which SRS resource set 235 to use if interpreting CG uplinktransmission associated RRC parameters. Enabling devices to determinewhich SRS resource set 235 to use if interpreting RRC parameters mayenhance synchronization between communicating devices, reduce systemlatency, and decrease power consumption.

FIG. 3A illustrates an example of a wireless communications system 300that supports SRI association for CG-based TRP PUSCH transmission inaccordance with aspects of the present disclosure. The wirelesscommunications system 300 may implement or be implemented to realizeaspects of the wireless communications system 100 and the wirelesscommunications system 200. For example, the wireless communicationssystem 300 may illustrate communications between a UE 115-b and a basestation 105-b, which may be examples of corresponding devices, includingwith reference to FIGS. 1 and 2 . The base station 105-b may configurethe UE 115-b with a CG configuration 305-a for multiple CG uplinktransmissions 325 using multiple beams 330 with corresponding powercontrol parameters 335 that transmit the uplink data to multiple TRPs340 at the base station 105-b. In some examples, the CG configuration305-a, which may be an example of the CG configuration 205 as describedwith reference to FIG. 2 , may indicate one or more SRS resource setconfigurations for the UE 115-b to use. As such, the UE 115-b may followtechniques to determine which SRS resource set to use if transmittingrespective CG uplink transmissions 325.

In the example of wireless communications system 300, the UE 115-b maytransmit repetitions, such as four repetitions, of the CG uplinktransmissions 325 and may alternate between transmitting the CG uplinktransmissions 325 to the TRP 340-a using a first SRS resource setcorresponding to the first set of control parameters 335-a and the firstbeam 330-a and transmitting the CG uplink transmissions 325 to the TRP340-b using a second SRS resource set corresponding to the second set ofcontrol parameters 335-b and the second beam 330-b.

In some examples, the CG configuration 305-a message may also indicate abeam mapping pattern for the CG uplink transmissions 325, such as acyclic beam mapping pattern 310 or a sequential beam mapping pattern315, and the UE 115-b may transmit the CG uplink transmissions inaccordance with the beam mapping pattern. In such examples, the UE 115-bmay receive the beam mapping via RRC signaling. In examples in which theCG configuration 305-a indicates the cyclic beam mapping pattern 310,the UE 115-b may alternate between the first SRS resource set and thesecond SRS resource set. In other words, the UE 115-b may alternatebetween the first SRS resource set and the second SRS resource set aftereach CG uplink transmission 325 occasion. For example, the UE 115-b maytransmit the CG uplink transmission 325-a and the CG uplink transmission325-c to the TRP 340-a using the first SRS resource set and may transmitthe CG uplink transmission 325-b and the CG uplink transmission 325-d tothe TRP 340-b using the second SRS resource set.

In examples in which the CG configuration 305-a indicates the sequentialbeam mapping pattern 315, the UE 115-b may sequentially transmit somefirst quantity, such as a first half, of CG uplink transmissions 325using the first SRS resource set and may switch to transmit some secondquantity, such as a second half, of the CG uplink transmissions 325using the second SRS resource set. In some implementations, the firstquantity may be the same as the second quantity (for example, each maybe a half of the CG uplink transmissions 325 and a quantity ofrepetitions of for the CG uplink transmissions 325 may be an evenquantity). In some other implementations, the first quantity may bedifferent than the second quantity (for example, the first quantity maybe a greater quantity or a lesser quantity of the CG uplinktransmissions 325 compared to the second quantity). For example, the UE115-b may transmit the CG uplink transmission 325-e and the CG uplinktransmission 325-f to the TRP 340-a using the first SRS resource set andmay transmit the CG uplink transmission 325-g and the CG uplinktransmission 325-h to the TRP 340-b using the second SRS resource set.

In some cases, the UE 115-b may have difficulty in determining which SRSresource set to use if interpreting RRC parameters included in the CGconfiguration 305-a. For example, in interpreting a parameter, such asthe srs-ResourceIndicator parameter, it may be ambiguous to the UE 115-bwhether to use the first SRS resource set or the second SRS resourceset. Similarly, for another parameter, such as theprecodingAndNumberOfLayers parameter, the interpretation of such aparameter may depend on a quantity of SRS ports, and a selected SRSresource such that the UE 115-b may have difficulty in determining theSRS resource set to use. Further, the difficulty may be increased incases in which the base station 105-b configures the UE 115-b with otherparameters, such as a second srs-ResourceIndicator parameter and asecond precodingAndNumberOfLayers parameter (for example, in cases inwhich the base station 105-b uses an mTRP configuration).

In some examples, the UE 115-b may use the techniques described hereinto determine which SRS resource set to use if interpreting the CGconfiguration 305-a as well as the appropriate mapping pattern inaccordance with the CG configuration 305-a. For example, the basestation 105-b may configure the UE 115-b with first parameters, such asa first srs-ResourceIndicator parameter and a firstprecodingAndNumberOfLayers parameter, while refraining from configuringthe UE 115-b with second parameters, such as a secondsrs-ResourceIndicator parameter and a second precodingAndNumberOfLayersparameter. In such examples, the UE 115-b may associate the first SRSresource set (for example, the SRS resource set with the lowest SRSresource set ID) with the first srs-ResourceIndicator parameter and thefirst precodingAndNumberOfLayers parameter and may interpret suchparameters therewith. In other examples, the base station 105-b may addan indication, such as adding a field, within the RRC signaling,indicating which SRS resource set to associate with one or moreparameters, such as the first srs-ResourceIndicator parameter and thefirst precodingAndNumberOfLayers parameter. That is, the base station105-b may transmit an RRC indication (for example, with other RRCsignaling) or an additional RRC configuration (for example, within therrc-ConfiguredUplinkGrant field of CG configuration 305-a), indicating(for example, pointing to) the first SRS resource set or the second SRSresource set (for example, the SRS resource set with the higher SRSresource set ID) that the UE 115-b may use if interpreting one or moreparameters, such as the first srs-ResourceIndicator parameter and thefirst precodingAndNumberOfLayers parameter. Additionally, in variousexamples, the UE 115-b may transmit CG uplink transmissions 325 with acyclic beam mapping pattern 310, a sequential beam mapping pattern 315,or any other mapping pattern defined at the UE 115-b (for example,preconfigured at the UE 115-b) or signaled by the base station 105-b, orany combination thereof.

In some examples, the base station 105-b may configure the UE 115-b withmultiple parameters, such as a first srs-ResourceIndicator parameter, afirst precodingAndNumberOfLayers parameter, a secondsrs-ResourceIndicator parameter, and a second precodingAndNumberOfLayersparameter. In such examples, the UE 115-b may associate the first SRSresource set (for example, a resource set with the relatively lower SRSresource set ID) with one or more parameters, such as the firstsrs-ResourceIndicator parameter and the first precodingAndNumberOfLayersparameter and may associate the second SRS resource set (for example,with the higher SRS resource set ID) with one or more parameters, suchas the second srs-ResourceIndicator parameter and the secondprecodingAndNumberOfLayers parameter. In some examples, the UE 115-b maybe configured with a fixed order of repetitions. For example, the UE115-b may transmit the first CG uplink transmission 325 using the firstSRS resource set and the UE 115-b may transmit the remaining (forexample, three) CG uplink transmissions in accordance with a fixed beammapping type such as the cyclic beam mapping pattern 310 or thesequential beam mapping pattern 315. Additionally or alternatively, thebase station 105-b may add an additional RRC configuration to the CGconfiguration 305-a, indicating a particular order of PUSCH repetitions.In other words, the base station 105-b may transmit the CG configuration305-a with an additional field (for example, withinrrc-ConfiguredUplinkGrant) indicating which SRS resource set that afirst PUSCH repetition may correspond to. For example, the base station105-b may indicate that the UE 115-b may transmit the first CG uplinktransmission 325 using the second SRS resource set. The UE 115-b maythen transmit the remaining CG uplink transmissions 325 in accordancewith a cyclic beam mapping pattern 310, a sequential beam mappingpattern 315, or any other mapping pattern.

FIG. 3B illustrates an example of a wireless communications system 301that supports SRI association for CG-based TRP PUSCH transmission inaccordance with aspects of the present disclosure. The wirelesscommunications system 301 may implement or be implemented to realizeaspects of the wireless communications system 100, the wirelesscommunications system 200, or the wireless communications system 300.For example, the wireless communications system 301 may illustratecommunications between a UE 115-c and a base station 105-c, which may beexamples of corresponding devices, including with reference to FIGS. 1,2, and 3A. The base station 105-c may configure the UE 115-c with a CGconfiguration 305-c for multiple CG uplink transmissions 325 usingmultiple beams 330 with corresponding power control parameters 335 thattransmit the uplink data to multiple TRPs 340 at the base station 105-c.In some examples, the CG configuration 305-b, which may be an example ofthe CG configuration 305-a as described with reference to FIG. 3A, mayindicate one or more SRS resource set configurations for the UE 115-c touse. As such, the UE 115-c may follow techniques to determine which SRSresource set to use if transmitting respective CG uplink transmissions325.

In the example of wireless communications system 301, the UE 115-c maytransmit repetitions, such as four repetitions, of the CG uplinktransmissions 325 and may alternate between transmitting the CG uplinktransmissions 325 to the TRP 340-c using a first SRS resource setcorresponding to the first set of control parameters 335-c and the firstbeam 330-c and transmitting the CG uplink transmissions 325 to the TRP340-d using a second SRS resource set corresponding to the second set ofcontrol parameters 335-d and the second beam 330-d.

In some examples, the base station 105-c may configure the UE 115-c witha limited quantity, for example four, dynamic switching possibilities345 which the UE 115-c may use to determine which SRS resource set touse when transmitting each CG uplink transmission 325. To inform the UE115-c of such dynamic switching possibilities 345, the base station105-c may transmit the CG configuration 305-b with an additional field(for example, within rrc-ConfiguredUplinkGrant) indicating one of thepotential, limited quantity dynamic switching possibilities 345 (forexample, one of the four dynamic switching possibilities 345).

For example, the UE 115-c may be configured with four dynamic switchingpossibilities 345, in which each dynamic switching possibility 345 maybe associated with a respective transmission pattern instructing the UE115-c to transmit one or more CG uplink transmissions 325 to one or moreTRPs 340 (for example, using SRS resource sets associated with the powercontrol parameters 335) in a sequence. In some examples, the basestation 105-c may indicate one of the four potential dynamic switchingpossibilities 345 with a field, such as a two-bit field. That is, thebase station 105-c may transmit two bits, corresponding to one of thefour potential dynamic switching possibilities 345, within theadditional field. Each dynamic switching possibility 345 may correspondto a particular transmission pattern. For example, the base station105-c may transmit the CG configuration 305-b with the additional fieldhaving a value of “10,” which may indicate that the UE 115-c may usedynamic switching possibility 345-a. As such, the UE 115-c may use thepower control parameters 335-c for CG uplink transmission 325-i and CGuplink transmission 325-k and may transmit the CG uplink transmission325-i and the CG uplink transmission 325-k towards the TRP 340-c. Insuch aspects, the UE 115-c may use the power control parameters 335-dfor CG uplink transmission 325-j and CG uplink transmission 325-1 andmay transmit the CG uplink transmission 325-j and the CG uplinktransmission 325-1 toward the TRP 340-d. In some examples, the basestation 105-c may transmit the CG configuration 305-d with theadditional field having a value of “11,” which may indicate that the UE115-c may use dynamic switching possibility 345-b. As such, the UE 115-cmay use the power control parameters 335-d for a CG uplink transmission325-m and CG uplink transmission 325-o and may transmit the CG uplinktransmission 325-m and the CG uplink transmission 325-o towards the TRP340-d. In such examples, the UE 115-c may use the power controlparameters 335-c for CG uplink transmission 325-n and CG uplinktransmission 325-p and may transmit the CG uplink transmission 325-n andthe CG uplink transmission 325-p towards the TRP 340-c. In someimplementations, the base station 105-c may transmit the CGconfiguration 305-b with the additional field having a value of “01,”which may indicate that the UE 115-c may use the dynamic switchingpossibility 345-c. As such, the UE 115-c may use power controlparameters 335-d to transmit the CG uplink transmission 325-q, CG uplinktransmission 325-r, CG uplink transmission 325-s, and CG uplinktransmission 325-t toward the TRP 340-b. In other words, the UE 115-cmay transmit CG uplink transmissions toward the TRP 340-b using only thepower control parameters 335-d and the associated SRS resource set. Insome examples, the base station 105-c may transmit the CG configuration305-b with the additional field having a value of “00,” which mayindicate that the UE 115-c may use the power control parameters 335-cand may transmit CG uplink transmissions 325 toward the TRP 340-a.

It may be understood that the any CG configuration 305 may include anypattern mapping SRS resource sets to respective CG uplink transmissions325. Further, UEs 115 may be configured with any quantity of CG uplinktransmissions 325, dynamic switching possibilities 345 may correspond toany SRS resource set mapping order, dynamic switching possibilities 345may be associated with any quantity of TRPs 340, and the additionalfield may include any quantity of bits.

FIG. 4 illustrates an example of a process flow 400 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the process flow400 may be implemented by a wireless device, such as a UE, among otheroptions. For example, the operations of the process flow 400 may beperformed by a UE as described with reference to FIGS. 1-3B. In someexamples, a UE may be configured to use multiple SRS resource sets ifcommunicating with other devices. As such, the UE may use, or otherwisereference, process flow 400 in determining which SRS resource set to useif interpreting RRC configurations, determining an uplink transmissionmapping (for example, CG uplink transmissions), among other examples.Alternative examples of the following may be implemented, in which somesteps are performed in a different order or not at all. Additionally,some steps may include additional features not mentioned below.

At 405, the UE may receive first control signaling. In some examples,the first control signaling may indicate a first SRS resource setassociated with a first set of power control parameters and a second SRSresource set associated with a second set of power control parameters.In some examples, the first control signaling may be RRC signaling froma base station. In such examples, the first control signaling mayindicate an association of the first SRS resource set with a first TRPand the second SRS resource set with a second TRP.

At 410, the UE may receive second control signaling. In some examples,the second control signaling may indicate a CG configuration that the UEmay use, or reference, if transmitting uplink information (for example,CG uplink transmissions). The first set of power control parameters andthe second set of power control parameters may be associated withtransmissions corresponding to the CG configuration. In some examples,the CG configuration may include an indication of a fixed mappingpattern, a mapping pattern order, or another configured mapping pattern(for example, a mapping pattern of four possible mapping patterns), orany combination thereof, as described with reference to FIGS. 2 and 3 .In some examples, the second control signaling may be RRC signaling suchas the RRC signaling including the first control signaling. In someexamples, the second control signaling may be RRC signaling such as RRCsignaling that is separate from the RRC including the first controlsignaling.

At 415, the UE may determine a configuration status of at least some of,if not each of, one or more fields in RRC signaling such as the firstcontrol signaling or the second control signaling. In particular, the UEmay determine whether second RRC fields are configured withinconfiguration signaling from the base station. For example, the UE maydetermine whether RRC fields, such as a second srs-ResourceIndicatorfield and a second precoderAndNumberOfLayers field, are configured incontrol signaling as described with reference to FIGS. 2 and 3 .

In some examples, the UE may determine that such second RRC fields arenot configured within configuration signaling from the base station. Assuch, at 420, the UE may determine whether third control signaling isreceived. In some examples, the third control signaling may (forexample, explicitly) indicate whether the UE should use the first SRSresource set or the second SRS resource set if interpreting RRC fields,such as a first srs-ResourceIndicator field and a firstprecoderAndNumberOfLayers field. In such examples, the UE may receivethe third control signaling, at 425, and may use the indicated SRSresource set if interpreting the first fields (for example, the firstsrs-ResourceIndicator field and the first precoderAndNumberOfLayersfield). In some examples, the first control signaling, the secondcontrol signaling, or both may include the third control signaling. Forexample, the third signaling may be communicated as part of one or bothof the first control signaling or the second control signaling. In someexamples, the first control signaling, the second control signaling, orboth may not include the third control signaling. For example, the thirdsignaling may be communicated separate from both of the first controlsignaling and the second control signaling. Alternatively, the UE mayfail to receive the third control signaling. As such, at 430, the UE mayselect the first SRS resource set (for example, the SRS resource setassociated with the lower or lowest SRS resource set ID) if interpretingthe first RRC fields. For example, the UE may be configured to use aparticular SRS resource set, such as the SRS resource set with thelowest SRS resource set ID, when interpreting the first fields if the UEdetermines the second fields are not configured within the configurationsignaling from the base station.

In some examples, the UE may determine that the second RRC fields areconfigured within configuration signaling from the base station. Assuch, at 435, the UE may determine an association between RRC fields andSRS resource sets. In some examples, the UE may be configured toassociate particular SRS resource sets with particular RRC fields. Forexample, the UE may determine that the first RRC fields, such as thefirst srs-ResourceIndicator field and the firstprecoderAndNumberOfLayers field, are associated with the first SRSresource set (for example, with the lower SRS resource set ID) and thatthe second RRC fields, such as the second srs-ResourceIndicator fieldand the second precoderAndNumberOfLayers field are associated with thesecond SRS resource set (for example, with the higher SRS resource setID). In other examples, the UE may determine that the first RRC fieldsare associated with the SRS resource set with the higher SRS resourceset ID and that the second RRC fields are associated with the SRSresource set with the lower SRS resource set ID.

At 440, the UE may determine whether the CG configuration and the SRSresource sets are associated with a mapping order, such as a fixeduplink transmission mapping order. That is, the UE may be configured toselect an SRS resource set for one or more transmissions (for example,CG uplink transmissions), in which selecting the SRS resource set may bebased on a fixed order for the one or more transmissions. For example,the UE may be configured with a fixed mapping pattern, such as a cyclicmapping pattern, a sequential mapping pattern, or any other mappingpattern, such that the UE may select the first SRS resource set for afirst set of transmissions and the second SRS resource set for a secondset of transmissions. In some examples, the base station may configurethe UE with the fixed order (for example, through RRC signaling) or theUE may be preconfigured with the fixed order.

In some examples, the UE may determine that the CG configuration and theSRS resource sets are associated with a fixed uplink transmissionmapping order. In such examples, at 450, the UE may select the first SRSresource set for a first transmission. For example, if selecting the SRSresource set based on the fixed order for the one or more transmissions,the UE may select the first SRS resource set for a first transmission intime of the one or more transmissions. The UE may select the first SRSresource set or the second SRS resource set for one or more second (forexample, remaining) transmissions in time of the one or moretransmissions in accordance with a mapping type. In some examples, themapping type may be a cyclic mapping (for example, a cyclic beam mappingpattern) of the first SRS resource set and the second SRS resource set.In other examples, the mapping type may be a sequential mapping (forexample, a sequential beam mapping pattern) of the first SRS resourceset and the second SRS resource set. However, in some examples, at 445and prior to selecting the first SRS resource set for the firsttransmission, the UE may receive third control signaling. In someexamples, the third control signaling may have a field indicating thatthe first transmission in time may be associated with either the firstSRS resource set or the second SRS resource set such that the UE maydetermine which SRS resource set to use for the first transmission inaccordance with the third control signaling. As such, transmitting theone or more transmissions and the transmission mapping of the SRSresource sets may be based on the third control signaling. For example,the third control signaling may indicate to the UE to use the second SRSresource set if transmitting the first transmission. In this example,the UE may be configured to use a cyclic mapping, in which the UE maytransmit the second transmission using the first SRS resource set, thethird transmission using the second SRS resource set, and so on.

In some examples, the UE may determine that the CG configuration and theSRS resource sets are not associated with a fixed uplink transmissionmapping order (for example, the CG configuration or the SRS resourcesets or both are associated with a different uplink transmission mappingorder or no uplink transmission mapping order). In such examples, at455, the UE may receive a third control signaling from the base station.In some examples, the third control signaling may have an indication,such as a field indicating, one of a fixed set of preconfigured mappingoptions associated with one or both of the first SRS resource set or thesecond SRS resource set. In some examples, the fixed set ofpreconfigured mapping options may include one or more of a firsttransmission in time of the one or more transmissions associated withthe first SRS resource set and a second transmission in time of the oneor more transmissions associated with the second SRS set. That is, afirst transmission may correspond to the first SRS resource set and asecond transmission may correspond to the second SRS resource set. Insome examples, the fixed set of preconfigured mapping options mayinclude a first transmission in time of the one or more transmissionsassociated with the second SRS resource set and a second transmission intime of the one or more transmissions associated with the first SRSresource set. That is, a first transmission may correspond to the secondSRS resource set and a second transmission may correspond to the firstSRS resource set. In some examples, the fixed set of preconfiguredmapping options may include the one or more transmissions beingassociated with the first SRS set or the one or more transmissions beingassociated with the second SRS resource set. Such mapping options may bemapped to one or more representations, such as one or more binaryrepresentations. For example, the fixed set of preconfigured mappingoptions may include four mapping options, in which each mapping optionmay correspond to a respective binary representation (for example, atwo-bit representation such as 00, 01, 10, or 11). The preconfiguredmapping options may be examples of the dynamic switching possibilitiesas described with reference to FIG. 3B. In such an example, the basestation 105-b may include the binary representation associated with amapping option within the respective field in the third controlsignaling such that the UE may determine the dynamic switchingpossibility at 460.

FIG. 5 illustrates an example of a process flow 500 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. In some examples, the process flow500 may implement aspects of wireless communications systems 100, 200,or 300, as described with reference to FIGS. 1-3B, respectively. Forexample, UE 115-d and base station 105-d—which may be examples of thecorresponding devices described with reference to FIGS. 1, 2, 3A, and3B—may communicate using one or more communication links in which thebase station 105-d may transmit control information, configuring one ormore uplink transmissions from the UE 115-d. In some examples, the UE115-d may be configured to use multiple SRS resource sets ifinterpreting such control information and the UE 115-d may experiencedifficulty in determining which SRS resource set to use if interpretingspecific control parameters. The UE 115-d may be configured to determinewhich SRS resource set to use if interpreting control information fromthe base station 105-c. For example, the UE 115-d may be configured touse, or otherwise reference, process flow 400 if determining which SRSresource set to use.

At 505, the base station 105-d may transmit, and the UE 115-d mayreceive, first control signaling including an indication of a first SRSresource set and a second SRS resource set associated with a first setof power control parameters and a second set of power controlparameters, respectively. The base station 105-d may transmit the firstcontrol signaling as, or within, RRC signaling.

At 510, the base station 105-d may transmit, and the UE 115-d mayreceive, second control signaling including an indication of a CGconfiguration, such as CG configuration 205 or CG configuration 305 asdescribed with reference to FIGS. 2, 3A, and 3B, respectively. In suchexamples, the first set of power control parameters and the second setof power control parameters may be for transmissions configured by theCG configuration. In some examples, receiving the second controlsignaling indicating the CG configuration may include receiving secondcontrol signaling indicating a CG PUSCH configuration. Additionally oralternatively, the CG configuration includes a Type 1 CG PUSCHconfiguration. In some examples, the base station 105-d may transmit thesecond control signaling as, or within RRC signaling and, in someexamples, the base station 105-d may transmit the second controlsignaling in the same RRC signaling as the first control signaling. Theone or more fields in the RRC signaling includes one or more of an SRSresource indicator field (for example, srs-ResourceIndicator), aprecoding and number of layers field (for example,precodingAndNumberOfLayers), or a pathloss reference index field (forexample, pathlossReferenceIndex).

In some examples, at 415, the base station 105-d may transmit, and theUE 115-d may receive, third control signaling which may indicate whichfields are associated with which SRS resource sets, or one or moremapping options, among other examples. The third control signaling mayaid the UE 115-d in determining which SRS resource set to use ifinterpreting control signaling from the base station 105-d, for example,such as the third control signaling in the process flow 400 as describedwith reference to FIG. 4 .

At 520, the UE 115-d may determine a configuration status for each ofthe one or more fields in the RRC signaling from the base station 105-d,based on receiving the first control signaling at 505, receiving thesecond control signaling at 510, or a combination thereof. For example,the UE 115-d may determine whether one or more second fields (forexample, a second srs-ResourceIndicator and a secondprecodingAndNumberOfLayers) are configured in the RRC signaling. In someexamples, the UE 115-d may determine that the second fields are notconfigured in the RRC signaling, for example, in accordance with thebase station 105-d using an sTRP configuration. As such, the UE 115-dmay determine to use the first SRS resource set if interpreting the oneor more first fields (for example, a first srs-ResourceIndicator and afirst precodingAndNumberOfLayers). Additionally or alternatively, the UE115-d may receive third control signaling at 415, indicating which SRSresource set to use if interpreting the one or more first fields. Inother examples, the UE 115-d may determine that the second fields areconfigured in the RRC signaling, for example, in accordance with thebase station 105-d using an mTRP configuration. As such, the UE 115-dmay associate the first SRS resource set with the first fields and mayassociate the second SRS resource set with the second fields.

At 525, the UE 115-d may select an SRS resource set from the first SRSresource set or the second SRS resource set based on the configurationstatus of each of the one or more fields in the RRC signaling, forexample, determined at 520. In some examples, the UE 115-d may selectthe SRS resource set based on whether the second fields in the RRCsignaling are configured. For example, in cases in which the UE 115-ddetermines that the second fields are not configured, the UE 115-d maydetermine to use the first SRS resource set if interpreting the firstfields. Additionally or alternatively, the UE 115-d may use SRS resourceset as indicated in the third control signaling at 515 if interpretingthe first fields. In another example, the UE 115-d may determine thatthe second fields are configured. In such an example, the UE 115-d mayselect the SRS resource set based on a fixed order for the one or moreuplink transmissions scheduled by the CG configuration. In someexamples, the UE 115-d may determine a fixed order of the one or moreuplink transmissions, in which each uplink transmission may betransmitted using a respective SRS resource set. For example, the UE115-d may be configured to use a cyclic mapping pattern if transmittingthe one or more uplink transmissions, in which the UE 115-d may selectthe SRS resource set based on the fixed order specified in the cyclicmapping pattern. The UE 115-d may be configured to select the first SRSresource set if transmitting the one or more uplink transmissions.Additionally or alternatively, the base station 105-d may include afield within the third control signaling at 415, indicating that thefirst transmission in time of the one or more uplink transmissions maybe associated with the first SRS resource set or the second SRS resourceset, in which the UE 115-d may select the SRS resource set based on thefield in the third control signaling. In some examples, the UE 115-d mayselect the SRS resource set based on an indication of one of a fixed setof preconfigured mapping options. For example, the base station 105-dmay include a field indicating one of a fixed set of preconfiguredmapping options associated with one or both of the first SRS resourceset or the second SRS resource set. The UE 115-d may then select theindicated mapping option and a respective SRS resource set basedthereon. Selection of mapping options and SRS resource sets is describedin more detail with reference to FIG. 4 .

At 530, the UE 115-d may transmit one or more uplink transmissions tothe base station 105-d in an order corresponding to the determinedmapping pattern and in accordance with the selected SRS resource set.For example, the UE 115-d may transmit four CG uplink PUSCH repetitionsin accordance with a mapping pattern fixed at the UE 115-d, or indicatedby the base station 105-d, and starting with an SRS resource set asselected at 525.

Configuring UEs 115 to use techniques as described with reference toprocess flow 500 may mitigate difficulty in interpreting RRC parameters,for example, if the UEs 115 are configured to use multiple SRS resourcesets. That is, UEs 115 configured according to the techniques describedherein may determine an SRS resource set to use if interpreting one ormore fields (for example, first and second srs-ResourceIndicator andprecoderAndNumberOfLayers) as well as a mapping pattern to use iftransmitting uplink transmissions. Such techniques may provide forexpedited decision at the UE 115-d, enhanced synchronization betweencommunicating devices, decreased system latency, among other examples.

FIG. 6 shows a block diagram of a device 605 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The device 605 may be an example ofaspects of a UE 115. The device 605 may include a receiver 610, atransmitter 615, and a communications manager 620. The communicationsmanager 620 can be implemented, at least in part, by one or both of amodem and a processor may also include a processor. Each of thesecomponents may be in communication with one another (for example, viaone or more buses).

The receiver 610 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (for example, controlchannels, data channels, information channels related to SRI associationfor CG-based TRP PUSCH repetition). Information may be passed on toother components of the device 605. The receiver 610 may utilize asingle antenna or a set of multiple antennas.

The transmitter 615 may provide a means for transmitting signalsgenerated by other components of the device 605. For example, thetransmitter 615 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (for example, control channels, data channels,information channels related to SRI association for CG-based TRP PUSCHrepetition). In some examples, the transmitter 615 may be co-locatedwith a receiver 610 in a transceiver module. The transmitter 615 mayutilize a single antenna or a set of multiple antennas.

The communications manager 620, the receiver 610, the transmitter 615,or various combinations thereof or various components thereof may beexamples of means for performing various aspects of SRI association forCG-based TRP PUSCH repetition. For example, the communications manager620, the receiver 610, the transmitter 615, or various combinations orcomponents thereof may support a method for performing one or more ofthe functions described herein.

In some examples, the communications manager 620, the receiver 610, thetransmitter 615, or various combinations or components thereof may beimplemented in hardware (for example, in communications managementcircuitry). The hardware may include a processor, a digital signalprocessor (DSP), an application-specific integrated circuit (ASIC), afield-programmable gate array (FPGA) or other programmable logic device,a discrete gate or transistor logic, discrete hardware components, orany combination thereof configured as or otherwise supporting a meansfor performing the functions described in the present disclosure. Insome examples, a processor and memory coupled with the processor may beconfigured to perform one or more of the functions described herein (forexample, by executing, by the processor, instructions stored in thememory).

Additionally or alternatively, in some examples, the communicationsmanager 620, the receiver 610, the transmitter 615, or variouscombinations or components thereof may be implemented in code (forexample, as communications management software or firmware) executed bya processor. If implemented in code executed by a processor, thefunctions of the communications manager 620, the receiver 610, thetransmitter 615, or various combinations or components thereof may beperformed by a general-purpose processor, a DSP, a central processingunit (CPU), an ASIC, an FPGA, or any combination of these or otherprogrammable logic devices (for example, configured as or otherwisesupporting a means for performing the functions described in the presentdisclosure).

In some examples, the communications manager 620 may be configured toperform various operations (for example, receiving, monitoring,transmitting) using or otherwise in cooperation with the receiver 610,the transmitter 615, or both. For example, the communications manager620 may receive information from the receiver 610, send information tothe transmitter 615, or be integrated in combination with the receiver610, the transmitter 615, or both to receive information, transmitinformation, or perform various other operations.

The communications manager 620 may support wireless communication at aUE in accordance with examples as disclosed herein. For example, thecommunications manager 620 may be configured as or otherwise support ameans for receiving first control signaling indicating a first soundingreference signal resource set associated with a first set of powercontrol parameters and a second sounding reference signal resource setassociated with a second set of power control parameters. Thecommunications manager 620 may be configured as or otherwise support ameans for receiving second control signaling indicating a CGconfiguration, the first set of power control parameters and the secondset of power control parameters being for uplink transmissions andassociated with the CG configuration. The communications manager 620 maybe configured as or otherwise support a means for determining aconfiguration status of each of one or more fields in RRC signalingbased on one or both of the first control signaling or the secondcontrol signaling. The communications manager 620 may be configured asor otherwise support a means for selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The communications manager 620 may be configuredas or otherwise support a means for transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set.

By including or configuring the communications manager 620, the device605 (for example, a processor controlling or otherwise coupled to thereceiver 610, the transmitter 615, the communications manager 620, or acombination thereof) may support techniques for determining anassociation between one or more SRS resource sets and CG uplinktransmission control parameters as well as a mapping pattern between CGuplink transmissions and SRS resource sets, reducing a difficulty inprocessing, reducing power consumption, and enhancing the utilization ofcommunication resources.

FIG. 7 shows a block diagram of a device 705 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The device 705 may be an example ofaspects of a device 605 or a UE 115. The device 705 may include areceiver 710, a transmitter 715, and a communications manager 720. Thecommunications manager 720 can be implemented, at least in part, by oneor both of a modem and a processor. Each of these components may be incommunication with one another (for example, via one or more buses).

The receiver 710 may provide a means for receiving information such aspackets, user data, control information, or any combination thereofassociated with various information channels (for example, controlchannels, data channels, information channels related to SRI associationfor CG-based TRP PUSCH repetition). Information may be passed on toother components of the device 705. The receiver 710 may utilize asingle antenna or a set of multiple antennas.

The transmitter 715 may provide a means for transmitting signalsgenerated by other components of the device 705. For example, thetransmitter 715 may transmit information such as packets, user data,control information, or any combination thereof associated with variousinformation channels (for example, control channels, data channels,information channels related to SRI association for CG-based TRP PUSCHrepetition). In some examples, the transmitter 715 may be co-locatedwith a receiver 710 in a transceiver module. The transmitter 715 mayutilize a single antenna or a set of multiple antennas.

The device 705, or various components thereof, may be an example ofmeans for performing various aspects of SRI association for CG-based TRPPUSCH repetition. For example, the communications manager 720 mayinclude a control signaling receiver 725, a field status component 730,an SRS resource set selector 735, an uplink transmitter 740, or anycombination thereof. In some examples, the communications manager 720,or various components thereof, may be configured to perform variousoperations (for example, receiving, monitoring, transmitting) using orotherwise in cooperation with the receiver 710, the transmitter 715, orboth. For example, the communications manager 720 may receiveinformation from the receiver 710, send information to the transmitter715, or be integrated in combination with the receiver 710, thetransmitter 715, or both to receive information, transmit information,or perform various other operations.

The communications manager 720 may support wireless communication at aUE in accordance with examples as disclosed herein. The controlsignaling receiver 725 may be configured as or otherwise support a meansfor receiving first control signaling indicating a first soundingreference signal resource set associated with a first set of powercontrol parameters and a second sounding reference signal resource setassociated with a second set of power control parameters. The controlsignaling receiver 725 may be configured as or otherwise support a meansfor receiving second control signaling indicating a CG configuration,the first set of power control parameters and the second set of powercontrol parameters being for uplink transmissions and associated withthe CG configuration. The field status component 730 may be configuredas or otherwise support a means for determining a configuration statusof each of one or more fields in RRC signaling based on one or both ofthe first control signaling or the second control signaling. The SRSresource set selector 735 may be configured as or otherwise support ameans for selecting a sounding reference signal resource set from thefirst sounding reference signal resource set or the second soundingreference signal resource set based on the configuration statuses. Theuplink transmitter 740 may be configured as or otherwise support a meansfor transmitting one or more uplink transmissions on a PUSCH associatedwith the CG configuration using the sounding reference signal resourceset selected from the first sounding reference signal resource set orthe second sounding reference signal resource set.

FIG. 8 shows a block diagram of a communications manager 820 thatsupports SRI association for CG-based TRP PUSCH transmission inaccordance with aspects of the present disclosure. The communicationsmanager 820, or various components thereof, may be an example of meansfor performing various aspects of SRI association for CG-based TRP PUSCHrepetition. For example, the communications manager 820 may include acontrol signaling receiver 825, a field status component 830, an SRSresource set selector 835, an uplink transmitter 840, a fieldassociation component 845, or any combination thereof. Each of thesecomponents may communicate, directly or indirectly, with one another(for example, via one or more buses).

The communications manager 820 may support wireless communication at aUE in accordance with examples as disclosed herein. The controlsignaling receiver 825 may be configured as or otherwise support a meansfor receiving first control signaling indicating a first soundingreference signal resource set associated with a first set of powercontrol parameters and a second sounding reference signal resource setassociated with a second set of power control parameters. In someexamples, the control signaling receiver 825 may be configured as orotherwise support a means for receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The field statuscomponent 830 may be configured as or otherwise support a means fordetermining a configuration status of each of one or more fields in RRCsignaling based on one or both of the first control signaling or thesecond control signaling. The SRS resource set selector 835 may beconfigured as or otherwise support a means for selecting a soundingreference signal resource set from the first sounding reference signalresource set or the second sounding reference signal resource set basedon the configuration statuses. The uplink transmitter 840 may beconfigured as or otherwise support a means for transmitting one or moreuplink transmissions on a PUSCH associated with the CG configurationusing the sounding reference signal resource set selected from the firstsounding reference signal resource set or the second sounding referencesignal resource set.

In some examples, to support determining the configuration status of theone or more fields in the RRC signaling, the field status component 830may be configured as or otherwise support a means for determining thatone or more second fields of the one or more fields are not configured.

In some examples, to support selecting the sounding reference signalresource set, the SRS resource set selector 835 may be configured as orotherwise support a means for selecting the first sounding referencesignal resource set based on one or more first fields of the beingassociated with the first sounding reference signal resource set. Insome examples, the one or more fields include one or both of a soundingreference signal resource indicator field or a precoding and number oflayers field.

In some examples, the control signaling receiver 825 may be configuredas or otherwise support a means for receiving third control signalingindicating that the one or more fields are associated with one of thefirst sounding reference signal resource set or the second soundingreference signal resource set.

In some examples, the one or more fields include one or both of asounding reference signal resource indicator field or a precoding andnumber of layers field. In some examples, one or both of the firstcontrol signaling or the second control signaling include the thirdcontrol signaling.

In some examples, to support determining the configuration statuses ofthe one or more fields in the RRC signaling, the field status component830 may be configured as or otherwise support a means for determiningthat one or more second fields of the one or more fields are configured.

In some examples, the field association component 845 may be configuredas or otherwise support a means for determining that one or more firstfields of the one or more fields in the RRC signaling are associatedwith the first sounding reference signal resource set and that the oneor more second fields of the one or more fields in the RRC signaling areassociated with the second sounding reference signal resource set, inwhich selecting the sounding reference signal resource set from thefirst sounding reference signal resource set or the second soundingreference signal resource set is based on determining that the one ormore first fields are associated with the first sounding referencesignal resource set and that the one or more second fields areassociated with the second sounding reference signal resource set.

In some examples, to support selecting the sounding reference signalresource set, the SRS resource set selector 835 may be configured as orotherwise support a means for selecting the sounding reference signalresource set based on a fixed order for the one or more uplinktransmissions.

In some examples, to support selecting the sounding reference signalresource set based on the fixed order for the one or more uplinktransmissions, the SRS resource set selector 835 may be configured as orotherwise support a means for selecting the first sounding referencesignal resource set for a first uplink transmission in time of the oneor more uplink transmissions and selecting the first sounding referencesignal resource set or the second sounding reference signal resource setfor one or more second uplink transmissions in time of the one or moreuplink transmissions based on a mapping type.

In some examples, the mapping type includes a cyclic mapping of thefirst sounding reference signal resource set and the second soundingreference signal resource set. In some examples, the mapping typeincludes a sequential mapping of the first sounding reference signalresource set and the second sounding reference signal resource set.

In some examples, the control signaling receiver 825 may be configuredas or otherwise support a means for receiving third control signalinghaving a field indicating that the first uplink transmission in time ofthe one or more uplink transmissions is associated with one of the firstsounding reference signal resource set or the second sounding referencesignal resource set, in which transmitting the one or more uplinktransmissions is based on the third control signaling.

In some examples, the control signaling receiver 825 may be configuredas or otherwise support a means for receiving third control signalinghaving a field indicating one of a fixed set of preconfigured mappingoptions associated with one or both of the first sounding referencesignal resource set or the second sounding reference signal resourceset.

In some examples, the fixed set of preconfigured mapping optionsincludes one or more of a first uplink transmission in time of the oneor more uplink transmissions associated with the first soundingreference signal resource set and a second uplink transmission in timeof the one or more uplink transmissions associated with the secondsounding reference signal resource set, a first uplink transmission intime of the one or more uplink transmissions associated with the secondsounding reference signal resource set and a second uplink transmissionin time of the one or more uplink transmissions associated with thefirst sounding reference signal resource set, the one or more uplinktransmissions associated with the first sounding reference signalresource set, or the one or more uplink transmissions associated withthe second sounding reference signal resource set.

In some examples, the CG configuration includes a Type 1 CG PUSCHconfiguration. In some examples, the one or more fields in the RRCsignaling includes one or more of a sounding reference signal resourceindicator field, a precoding and number of layers field, or a pathlossreference index field. In some examples, the RRC signaling includes oneor both of the first control signaling or the second control signaling.

In some examples, to support receiving the second control signalingindicating the CG configuration, the control signaling receiver 825 maybe configured as or otherwise support a means for receiving secondcontrol signaling indicating a CG PUSCH configuration.

In some examples, the one or more uplink transmissions include codebookphysical uplink shared channel transmissions or non-codebook physicaluplink shared channel transmissions.

FIG. 9 shows a diagram of a system including a device 905 that supportsSRI association for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The device 905 may be an example ofor include the components of a device 605, a device 705, or a UE 115.The device 905 may communicate wirelessly with one or more base stations105, UEs 115, or any combination thereof. The device 905 may includecomponents for bi-directional voice and data communications includingcomponents for transmitting and receiving communications, such as acommunications manager 920, an input/output (I/O) controller 910, atransceiver 915, an antenna 925, a memory 930, code 935, and a processor940. These components may be in electronic communication or otherwisecoupled (for example, operatively, communicatively, functionally,electronically, electrically) via one or more buses (for example, a bus945).

The I/O controller 910 may manage input and output signals for thedevice 905. The I/O controller 910 may also manage peripherals notintegrated into the device 905. In some examples, the I/O controller 910may represent a physical connection or port to an external peripheral.In some examples, the I/O controller 910 may utilize an operating systemsuch as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, oranother known operating system. Additionally or alternatively, the I/Ocontroller 910 may represent or interact with a modem, a keyboard, amouse, a touchscreen, or a similar device. In some examples, the I/Ocontroller 910 may be implemented as part of a processor, such as theprocessor 940. In some examples, a user may interact with the device 905via the I/O controller 910 or via hardware components controlled by theI/O controller 910.

In some examples, the device 905 may include a single antenna 925.However, in some other cases, the device 905 may have more than oneantenna 925, which may be capable of concurrently transmitting orreceiving multiple wireless transmissions. The transceiver 915 maycommunicate bi-directionally, via the one or more antennas 925, wired,or wireless links. For example, the transceiver 915 may represent awireless transceiver and may communicate bi-directionally with anotherwireless transceiver. The transceiver 915 may also include a modem tomodulate the packets, to provide the modulated packets to one or moreantennas 925 for transmission, and to demodulate packets received fromthe one or more antennas 925. The transceiver 915, or the transceiver915 and one or more antennas 925, may be an example of a transmitter615, a transmitter 715, a receiver 610, a receiver 710, or anycombination thereof or component thereof.

The memory 930 may include random access memory (RAM) and read-onlymemory (ROM). The memory 930 may store computer-readable,computer-executable code 935 including instructions that, if executed bythe processor 940, cause the device 905 to perform various functionsdescribed herein. The code 935 may be stored in a non-transitorycomputer-readable medium such as system memory or another type ofmemory. In some examples, the code 935 may not be directly executable bythe processor 940 but may cause a computer (for example, if compiled andexecuted) to perform functions described herein. In some examples, thememory 930 may contain, among other things, a basic I/O system (BIOS)which may control basic hardware or software operation such as theinteraction with peripheral components or devices.

The processor 940 may include an intelligent hardware device (forexample, a general-purpose processor, a DSP, a CPU, a microcontroller,an ASIC, an FPGA, a programmable logic device, a discrete gate ortransistor logic component, a discrete hardware component, or anycombination thereof). In some examples, the processor 940 may beconfigured to operate a memory array using a memory controller. In someother cases, a memory controller may be integrated into the processor940. The processor 940 may be configured to execute computer-readableinstructions stored in a memory (for example, the memory 930) to causethe device 905 to perform various functions (for example, functions ortasks supporting SRI association for CG-based TRP PUSCH repetition). Thecommunications manager 920 can be implemented, at least in part, by oneor both of a modem and a processor.

The communications manager 920 may support wireless communication at aUE in accordance with examples as disclosed herein. For example, thecommunications manager 920 may be configured as or otherwise support ameans for receiving first control signaling indicating a first soundingreference signal resource set associated with a first set of powercontrol parameters and a second sounding reference signal resource setassociated with a second set of power control parameters. Thecommunications manager 920 may be configured as or otherwise support ameans for receiving second control signaling indicating a CGconfiguration, the first set of power control parameters and the secondset of power control parameters being for uplink transmissions andassociated with the CG configuration. The communications manager 920 maybe configured as or otherwise support a means for determining aconfiguration status of each of one or more fields in RRC signalingbased on one or both of the first control signaling or the secondcontrol signaling. The communications manager 920 may be configured asor otherwise support a means for selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The communications manager 920 may be configuredas or otherwise support a means for transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set.

By including or configuring the communications manager 920, the device905 may support techniques for determining an association between one ormore SRS resource sets and CG uplink transmission control parameters aswell as a mapping pattern between CG uplink transmissions and SRSresource sets, mitigating a difficulty in determining transmissionparameters, reducing power consumption, improving coordination betweendevices, and improving utilization of processing capability.

In some examples, the communications manager 920 may be configured toperform various operations (for example, receiving, monitoring,transmitting) using or otherwise in cooperation with the transceiver915, the one or more antennas 925, or any combination thereof. Althoughthe communications manager 920 is illustrated as a separate component,in some examples, one or more functions described with reference to thecommunications manager 920 may be supported by or performed by theprocessor 940, the memory 930, the code 935, or any combination thereof.For example, the code 935 may include instructions executable by theprocessor 940 to cause the device 905 to perform various aspects of SRIassociation for CG-based TRP PUSCH repetition, or the processor 940 andthe memory 930 may be otherwise configured to perform or support suchoperations.

FIG. 10 shows a flowchart illustrating a method 1000 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the method 1000 maybe implemented by a UE or its components. For example, the operations ofthe method 1000 may be performed by a UE 115 as described with referenceto FIGS. 1-9 . In some examples, a UE may execute a set of instructionsto control the functional elements of the UE to perform the describedfunctions. Additionally or alternatively, the UE may perform aspects ofthe described functions using special-purpose hardware.

At 1005, the method may include receiving first control signalingindicating a first sounding reference signal resource set associatedwith a first set of power control parameters and a second soundingreference signal resource set associated with a second set of powercontrol parameters. The operations of 1005 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1005 may be performed by a control signalingreceiver 825 as described with reference to FIG. 8 .

At 1010, the method may include receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The operationsof 1010 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1010 may beperformed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1015, the method may include determining a configuration status ofeach of one or more fields in RRC signaling based on one or both of thefirst control signaling or the second control signaling. The operationsof 1015 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1015 may beperformed by a field status component 830 as described with reference toFIG. 8 .

At 1020, the method may include selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The operations of 1020 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1020 may be performed by an SRS resource setselector 835 as described with reference to FIG. 8 .

At 1025, the method may include transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set. The operations of 1025 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1025 may be performed by an uplink transmitter 840 asdescribed with reference to FIG. 8 .

FIG. 11 shows a flowchart illustrating a method 1100 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the method 1100 maybe implemented by a UE or its components. For example, the operations ofthe method 1100 may be performed by a UE 115 as described with referenceto FIGS. 1-9 . In some examples, a UE may execute a set of instructionsto control the functional elements of the UE to perform the describedfunctions. Additionally or alternatively, the UE may perform aspects ofthe described functions using special-purpose hardware.

At 1105, the method may include receiving first control signalingindicating a first sounding reference signal resource set associatedwith a first set of power control parameters and a second soundingreference signal resource set associated with a second set of powercontrol parameters. The operations of 1105 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1105 may be performed by a control signalingreceiver 825 as described with reference to FIG. 8 .

At 1110, the method may include receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The operationsof 1110 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1110 may beperformed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1115, the method may include determining that one or more secondfields of the one or more fields are not configured. The operations of1115 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1115 may be performed bya field status component 830 as described with reference to FIG. 8 .

At 1120, the method may include selecting the first sounding referencesignal resource set based on one or more first fields of the beingassociated with the first sounding reference signal resource set. Theoperations of 1120 may be performed in accordance with examples asdisclosed herein. In some examples, aspects of the operations of 1120may be performed by an SRS resource set selector 835 as described withreference to FIG. 8 .

At 1125, the method may include transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thefirst sounding reference signal resource set selected from the firstsounding reference signal resource set or the second sounding referencesignal resource set. The operations of 1125 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1125 may be performed by an uplink transmitter 840as described with reference to FIG. 8 .

FIG. 12 shows a flowchart illustrating a method 1200 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the method 1200 maybe implemented by a UE or its components. For example, the operations ofthe method 1200 may be performed by a UE 115 as described with referenceto FIGS. 1-9 . In some examples, a UE may execute a set of instructionsto control the functional elements of the UE to perform the describedfunctions. Additionally or alternatively, the UE may perform aspects ofthe described functions using special-purpose hardware.

At 1205, the method may include receiving first control signalingindicating a first sounding reference signal resource set associatedwith a first set of power control parameters and a second soundingreference signal resource set associated with a second set of powercontrol parameters. The operations of 1205 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1205 may be performed by a control signalingreceiver 825 as described with reference to FIG. 8 .

At 1210, the method may include receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The operationsof 1210 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1210 may beperformed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1215, the method may include receiving third control signalingindicating that the one or more fields are associated with one of thefirst sounding reference signal resource set or the second soundingreference signal resource set. The operations of 1215 may be performedin accordance with examples as disclosed herein. In some examples,aspects of the operations of 1215 may be performed by a controlsignaling receiver 825 as described with reference to FIG. 8 .

At 1220, the method may include determining that one or more secondfields of the one or more fields are not configured. The operations of1220 may be performed in accordance with examples as disclosed herein.In some examples, aspects of the operations of 1220 may be performed bya field status component 830 as described with reference to FIG. 8 .

At 1225, the method may include selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The operations of 1225 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1225 may be performed by an SRS resource setselector 835 as described with reference to FIG. 8 .

At 1230, the method may include transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set. The operations of 1230 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1230 may be performed by an uplink transmitter 840 asdescribed with reference to FIG. 8 .

FIG. 13 shows a flowchart illustrating a method 1300 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the method 1300 maybe implemented by a UE or its components. For example, the operations ofthe method 1300 may be performed by a UE 115 as described with referenceto FIGS. 1-9 . In some examples, a UE may execute a set of instructionsto control the functional elements of the UE to perform the describedfunctions. Additionally or alternatively, the UE may perform aspects ofthe described functions using special-purpose hardware.

At 1305, the method may include receiving first control signalingindicating a first sounding reference signal resource set associatedwith a first set of power control parameters and a second soundingreference signal resource set associated with a second set of powercontrol parameters. The operations of 1305 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1305 may be performed by a control signalingreceiver 825 as described with reference to FIG. 8 .

At 1310, the method may include receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The operationsof 1310 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1310 may beperformed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1315, the method may include determining that one or more secondfields of the one or more fields are configured. The operations of 1315may be performed in accordance with examples as disclosed herein. Insome examples, aspects of the operations of 1315 may be performed by afield status component 830 as described with reference to FIG. 8 .

At 1320, the method may include determining that one or more firstfields of the one or more fields in the RRC signaling are associatedwith the first sounding reference signal resource set and that the oneor more second fields of the one or more fields in the RRC signaling areassociated with the second sounding reference signal resource set, inwhich selecting the sounding reference signal resource set from thefirst sounding reference signal resource set or the second soundingreference signal resource set is based on determining that the one ormore first fields are associated with the first sounding referencesignal resource set and that the one or more second fields areassociated with the second sounding reference signal resource set. Theoperations of 1320 may be performed in accordance with examples asdisclosed herein. In some examples, aspects of the operations of 1320may be performed by a field association component 845 as described withreference to FIG. 8 .

At 1325, the method may include selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The operations of 1325 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1325 may be performed by an SRS resource setselector 835 as described with reference to FIG. 8 .

At 1330, the method may include selecting the sounding reference signalresource set based on a fixed order for the one or more uplinktransmissions. The operations of 1330 may be performed in accordancewith examples as disclosed herein. In some examples, aspects of theoperations of 1330 may be performed by an SRS resource set selector 835as described with reference to FIG. 8 .

At 1335, the method may include transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set. The operations of 1335 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1335 may be performed by an uplink transmitter 840 asdescribed with reference to FIG. 8 .

FIG. 14 shows a flowchart illustrating a method 1400 that supports SRIassociation for CG-based TRP PUSCH transmission in accordance withaspects of the present disclosure. The operations of the method 1400 maybe implemented by a UE or its components. For example, the operations ofthe method 1400 may be performed by a UE 115 as described with referenceto FIGS. 1-9 . In some examples, a UE may execute a set of instructionsto control the functional elements of the UE to perform the describedfunctions. Additionally or alternatively, the UE may perform aspects ofthe described functions using special-purpose hardware.

At 1405, the method may include receiving first control signalingindicating a first sounding reference signal resource set associatedwith a first set of power control parameters and a second soundingreference signal resource set associated with a second set of powercontrol parameters. The operations of 1405 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1405 may be performed by a control signalingreceiver 825 as described with reference to FIG. 8 .

At 1410, the method may include receiving second control signalingindicating a CG configuration, the first set of power control parametersand the second set of power control parameters being for uplinktransmissions and associated with the CG configuration. The operationsof 1410 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1410 may beperformed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1415, the method may include receiving third control signaling havinga field indicating one of a fixed set of preconfigured mapping optionsassociated with one or both of the first sounding reference signalresource set or the second sounding reference signal resource set. Theoperations of 1415 may be performed in accordance with examples asdisclosed herein. In some examples, aspects of the operations of 1415may be performed by a control signaling receiver 825 as described withreference to FIG. 8 .

At 1420, the method may include determining a configuration status ofeach of one or more fields in RRC signaling based on one or both of thefirst control signaling or the second control signaling. The operationsof 1420 may be performed in accordance with examples as disclosedherein. In some examples, aspects of the operations of 1420 may beperformed by a field status component 830 as described with reference toFIG. 8 .

At 1425, the method may include determining that one or more secondfields of the one or more fields are configured. The operations of 1425may be performed in accordance with examples as disclosed herein. Insome examples, aspects of the operations of 1425 may be performed by afield status component 830 as described with reference to FIG. 8 .

At 1430, the method may include selecting a sounding reference signalresource set from the first sounding reference signal resource set orthe second sounding reference signal resource set based on theconfiguration statuses. The operations of 1430 may be performed inaccordance with examples as disclosed herein. In some examples, aspectsof the operations of 1430 may be performed by an SRS resource setselector 835 as described with reference to FIG. 8 .

At 1435, the method may include transmitting one or more uplinktransmissions on a PUSCH associated with the CG configuration using thesounding reference signal resource set selected from the first soundingreference signal resource set or the second sounding reference signalresource set. The operations of 1435 may be performed in accordance withexamples as disclosed herein. In some examples, aspects of theoperations of 1435 may be performed by an uplink transmitter 840 asdescribed with reference to FIG. 8 .

The following provides an overview of aspects of the present disclosure:

Aspect 1: A method for wireless communication at a UE, comprising:receiving first control signaling indicating a first sounding referencesignal resource set associated with a first set of power controlparameters and a second sounding reference signal resource setassociated with a second set of power control parameters; receivingsecond control signaling indicating a configured grant configuration,the first set of power control parameters and the second set of powercontrol parameters being for uplink transmissions and associated withthe configured grant configuration; determining a configuration statusof each of one or more fields in radio resource control signaling basedat least in part on one or both of the first control signaling or thesecond control signaling; selecting a sounding reference signal resourceset from the first sounding reference signal resource set or the secondsounding reference signal resource set based at least in part on theconfiguration statuses; transmitting one or more uplink transmissions ona physical uplink shared channel associated with the configured grantconfiguration using the sounding reference signal resource set selectedfrom the first sounding reference signal resource set or the secondsounding reference signal resource set.

Aspect 2: The method of aspect 1, wherein determining the configurationstatuses of the one or more fields in the radio resource controlsignaling comprises: determining that one or more second fields of theone or more fields are not configured.

Aspect 3: The method of aspect 2, wherein selecting the soundingreference signal resource set comprises: selecting the first soundingreference signal resource set based at least in part on one or morefirst fields of the being associated with the first sounding referencesignal resource set.

Aspect 4: The method of aspect 3, wherein the one or more fieldscomprise one or both of a sounding reference signal resource indicatorfield or a precoding and number of layers field.

Aspect 5: The method of any of aspects 2 through 4, further comprising:receiving third control signaling indicating that the one or more fieldsare associated with one of the first sounding reference signal resourceset or the second sounding reference signal resource set.

Aspect 6: The method of aspect 5, wherein the one or more fieldscomprise one or both of a sounding reference signal resource indicatorfield or a precoding and number of layers field, and one or both of thefirst control signaling or the second control signaling comprise thethird control signaling.

Aspect 7: The method of any of aspects 1 through 6, wherein determiningthe configuration statuses of the one or more fields in the radioresource control signaling comprises: determining that one or moresecond fields of the one or more fields are configured.

Aspect 8: The method of aspect 7, further comprising: determining thatone or more first fields of the one or more fields in the radio resourcecontrol signaling are associated with the first sounding referencesignal resource set and that the one or more second fields of the one ormore fields in the radio resource control signaling are associated withthe second sounding reference signal resource set, wherein selecting thesounding reference signal resource set from the first sounding referencesignal resource set or the second sounding reference signal resource setis based at least in part on determining that the one or more firstfields are associated with the first sounding reference signal resourceset and that the one or more second fields are associated with thesecond sounding reference signal resource set.

Aspect 9: The method of aspect 8, wherein selecting the soundingreference signal resource set comprises: selecting the soundingreference signal resource set based on a fixed order for the one or moreuplink transmissions.

Aspect 10: The method of aspect 9, wherein selecting the soundingreference signal resource set based on the fixed order for the one ormore uplink transmissions comprises: selecting the first soundingreference signal resource set for a first uplink transmission in time ofthe one or more uplink transmissions and selecting the first soundingreference signal resource set or the second sounding reference signalresource set for one or more second uplink transmissions in time of theone or more uplink transmissions based at least in part on a mappingtype.

Aspect 11: The method of aspect 10, wherein the mapping type comprises acyclic mapping of the first sounding reference signal resource set andthe second sounding reference signal resource set.

Aspect 12: The method of any of aspects 10 through 11, wherein themapping type comprises a sequential mapping of the first soundingreference signal resource set and the second sounding reference signalresource set.

Aspect 13: The method of any of aspects 10 through 12, furthercomprising: receiving third control signaling having a field indicatingthat the first uplink transmission in time of the one or more uplinktransmissions is associated with one of the first sounding referencesignal resource set or the second sounding reference signal resourceset, wherein transmitting the one or more uplink transmissions is basedat least in part on the third control signaling.

Aspect 14: The method of any of aspects 8 through 13, furthercomprising: receiving third control signaling having a field indicatingone of a fixed set of preconfigured mapping options associated with oneor both of the first sounding reference signal resource set or thesecond sounding reference signal resource set.

Aspect 15: The method of aspect 14, wherein the fixed set ofpreconfigured mapping options comprises one or more of a first uplinktransmission in time of the one or more uplink transmissions associatedwith the first sounding reference signal resource set and a seconduplink transmission in time of the one or more uplink transmissionsassociated with the second sounding reference signal resource set, afirst uplink transmission in time of the one or more uplinktransmissions associated with the second sounding reference signalresource set and a second uplink transmission in time of the one or moreuplink transmissions associated with the first sounding reference signalresource set, the one or more uplink transmissions associated with thefirst sounding reference signal resource set, or the one or more uplinktransmissions associated with the second sounding reference signalresource set.

Aspect 16: The method of any of aspects 1 through 15, wherein theconfigured grant configuration comprises a Type 1 configured grantphysical uplink shared channel configuration.

Aspect 17: The method of any of aspects 1 through 16, wherein the one ormore fields in the radio resource control signaling comprises one ormore of a sounding reference signal resource indicator field, aprecoding and number of layers field, or a pathloss reference indexfield.

Aspect 18: The method of any of aspects 1 through 17, wherein the radioresource control signaling comprises one or both of the first controlsignaling or the second control signaling.

Aspect 19: The method of any of aspects 1 through 18, wherein receivingthe second control signaling indicating the configured grantconfiguration comprises: receiving second control signaling indicating aconfigured grant physical uplink shared channel configuration.

Aspect 20: The method of any of aspects 1 through 19, wherein the one ormore uplink transmissions comprise codebook physical uplinks sharedchannel transmissions or non-codebook physical uplinks shared channeltransmissions.

Aspect 21: An apparatus for wireless communication at a UE, comprising aprocessor; memory coupled with the processor; and instructions stored inthe memory and executable by the processor to cause the apparatus toperform a method of any of aspects 1 through 20.

Aspect 22: An apparatus for wireless communication at a UE, comprisingat least one means for performing a method of any of aspects 1 through20.

Aspect 23: A non-transitory computer-readable medium storing code forwireless communication at a UE, the code comprising instructionsexecutable by a processor to perform a method of any of aspects 1through 20.

It should be noted that the methods described herein describe possibleimplementations, and that the operations and the steps may be rearrangedor otherwise modified and that other implementations are possible.Further, aspects from two or more of the methods may be combined.

Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may bedescribed for purposes of example, and LTE, LTE-A, LTE-A Pro, or NRterminology may be used in much of the description, the techniquesdescribed herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NRnetworks. For example, the described techniques may be applicable tovarious other wireless communications systems such as Ultra MobileBroadband (UMB), Institute of Electrical and Electronics Engineers(IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, aswell as other systems and radio technologies not explicitly mentionedherein.

Information and signals described herein may be represented using any ofa variety of different technologies and techniques. For example, data,instructions, commands, information, signals, bits, symbols, and chipsthat may be referenced throughout the description may be represented byvoltages, currents, electromagnetic waves, magnetic fields or particles,optical fields or particles, or any combination thereof.

The various illustrative blocks and components described in connectionwith the disclosure herein may be implemented or performed with ageneral-purpose processor, a DSP, an ASIC, a CPU, an FPGA or otherprogrammable logic device, discrete gate or transistor logic, discretehardware components, or any combination thereof designed to perform thefunctions described herein. A general-purpose processor may be amicroprocessor, but in the alternative, the processor may be anyprocessor, controller, microcontroller, or state machine. A processormay also be implemented as a combination of computing devices (forexample, a combination of a DSP and a microprocessor, multiplemicroprocessors, one or more microprocessors in conjunction with a DSPcore, or any other such configuration).

Computer-readable media includes both non-transitory computer storagemedia and communication media including any medium that facilitatestransfer of a computer program from one place to another. Anon-transitory storage medium may be any available medium that may beaccessed by a general-purpose or special-purpose computer. By way ofexample, and not limitation, non-transitory computer-readable media mayinclude RAM, ROM, electrically erasable programmable ROM (EEPROM), flashmemory, compact disk (CD) ROM or other optical disk storage, magneticdisk storage or other magnetic storage devices, or any othernon-transitory medium that may be used to carry or store desired programcode means in the form of instructions or data structures and that maybe accessed by a general-purpose or special-purpose computer, or ageneral-purpose or special-purpose processor. Also, any connection isproperly termed a computer-readable medium. For example, if the softwareis transmitted from a website, server, or other remote source using acoaxial cable, fiber optic cable, twisted pair, digital subscriber line(DSL), or wireless technologies such as infrared, radio, and microwave,then the coaxial cable, fiber optic cable, twisted pair, DSL, orwireless technologies such as infrared, radio, and microwave areincluded in the definition of computer-readable medium. Disk and disc,as used herein, include CD, laser disc, optical disc, digital versatiledisc (DVD), floppy disk and Blu-ray disc in which disks usuallyreproduce data magnetically, while discs reproduce data optically withlasers. Combinations of the above are also included within the scope ofcomputer-readable media.

As used herein, including in the claims, “or” as used in a list of items(for example, a list of items prefaced by a phrase such as “at least oneof” or “one or more of”) indicates an inclusive list such that, forexample, a list of at least one of A, B, or C means A or B or C or AB orAC or BC or ABC (in other words, A and B and C). Also, as used herein,the phrase “based on” shall not be construed as a reference to a closedset of conditions. For example, an example step that is described as“based on condition A” may be based on both a condition A and acondition B without departing from the scope of the present disclosure.In other words, as used herein, the phrase “based on” shall be construedin the same manner as the phrase “based at least in part on.”

The term “determine” or “determining” encompasses a wide variety ofactions and “determining” can include calculating, computing,processing, deriving, investigating, looking up (such as via looking upin a table, a database or another data structure), ascertaining and thelike. Also, “determining” can include receiving (such as receivinginformation), accessing (such as accessing data in a memory) and thelike. Also, “determining” can include resolving, selecting, choosing,establishing and other such similar actions.

In the appended figures, similar components or features may have thesame reference label. Further, various components of the same type maybe distinguished by following the reference label by a dash and a secondlabel that distinguishes among the similar components. If just the firstreference label is used in the specification, the description isapplicable to any one of the similar components having the same firstreference label irrespective of the second reference label, or othersubsequent reference label.

The description set forth herein, in connection with the appendeddrawings, describes example configurations and does not represent allthe examples that may be implemented or that are within the scope of theclaims. The term “example” used herein means “serving as an example,instance, or illustration,” and not “preferred” or “advantageous overother examples.” The detailed description includes specific details forthe purpose of providing an understanding of the described techniques.These techniques, however, may be practiced without these specificdetails. In some instances, known structures and devices are shown inblock diagram form in order to avoid obscuring the concepts of thedescribed examples.

The description herein is provided to enable a person having ordinaryskill in the art to make or use the disclosure. Various modifications tothe disclosure will be apparent to a person having ordinary skill in theart, and the generic principles defined herein may be applied to othervariations without departing from the scope of the disclosure. As such,the disclosure is not limited to the examples and designs describedherein but is to be accorded the broadest scope consistent with theprinciples and novel features disclosed herein.

What is claimed is:
 1. A method for wireless communication at a userequipment (UE), comprising: receiving first control signaling indicatinga first sounding reference signal resource set associated with a firstset of power control parameters and a second sounding reference signalresource set associated with a second set of power control parameters;receiving second control signaling indicating a configured grantconfiguration, the first set of power control parameters and the secondset of power control parameters being for uplink transmissions andassociated with the configured grant configuration; determining aconfiguration status of each of one or more fields in radio resourcecontrol signaling based at least in part on one or both of the firstcontrol signaling or the second control signaling; selecting a soundingreference signal resource set from the first sounding reference signalresource set or the second sounding reference signal resource set basedat least in part on the configuration statuses; transmitting one or moreuplink transmissions on a physical uplink shared channel associated withthe configured grant configuration using the sounding reference signalresource set selected from the first sounding reference signal resourceset or the second sounding reference signal resource set.
 2. The methodof claim 1, wherein determining the configuration statuses of the one ormore fields in the radio resource control signaling comprisesdetermining that one or more second fields of the one or more fields arenot configured.
 3. The method of claim 2, wherein selecting the soundingreference signal resource set comprises selecting the first soundingreference signal resource set based at least in part on one or morefirst fields of the being associated with the first sounding referencesignal resource set.
 4. The method of claim 3, wherein the one or morefields comprise one or both of a sounding reference signal resourceindicator field or a precoding and number of layers field.
 5. The methodof claim 2, further comprising receiving third control signalingindicating that the one or more fields are associated with one of thefirst sounding reference signal resource set or the second soundingreference signal resource set.
 6. The method of claim 5, wherein the oneor more fields comprise one or both of a sounding reference signalresource indicator field or a precoding and number of layers field, andwherein one or both of the first control signaling or the second controlsignaling comprise the third control signaling.
 7. The method of claim1, wherein determining the configuration statuses of the one or morefields in the radio resource control signaling comprises determiningthat one or more second fields of the one or more fields are configured.8. The method of claim 7, further comprising determining that one ormore first fields of the one or more fields in the radio resourcecontrol signaling are associated with the first sounding referencesignal resource set and that the one or more second fields of the one ormore fields in the radio resource control signaling are associated withthe second sounding reference signal resource set, wherein selecting thesounding reference signal resource set from the first sounding referencesignal resource set or the second sounding reference signal resource setis based at least in part on determining that the one or more firstfields are associated with the first sounding reference signal resourceset and that the one or more second fields are associated with thesecond sounding reference signal resource set.
 9. The method of claim 8,wherein selecting the sounding reference signal resource set comprisesselecting the sounding reference signal resource set based on a fixedorder for the one or more uplink transmissions.
 10. The method of claim9, wherein selecting the sounding reference signal resource set based onthe fixed order for the one or more uplink transmissions comprisesselecting the first sounding reference signal resource set for a firstuplink transmission in time of the one or more uplink transmissions andselecting the first sounding reference signal resource set or the secondsounding reference signal resource set for one or more second uplinktransmissions in time of the one or more uplink transmissions based atleast in part on a mapping type.
 11. The method of claim 10, wherein themapping type comprises a cyclic mapping of the first sounding referencesignal resource set and the second sounding reference signal resourceset.
 12. The method of claim 10, wherein the mapping type comprises asequential mapping of the first sounding reference signal resource setand the second sounding reference signal resource set.
 13. The method ofclaim 10, further comprising receiving third control signaling having afield indicating that the first uplink transmission in time of the oneor more uplink transmissions is associated with one of the firstsounding reference signal resource set or the second sounding referencesignal resource set, wherein transmitting the one or more uplinktransmissions is based at least in part on the third control signaling.14. The method of claim 8, further comprising receiving third controlsignaling having a field indicating one of a fixed set of preconfiguredmapping options associated with one or both of the first soundingreference signal resource set or the second sounding reference signalresource set.
 15. The method of claim 14, wherein the fixed set ofpreconfigured mapping options comprises one or more of a first uplinktransmission in time of the one or more uplink transmissions associatedwith the first sounding reference signal resource set and a seconduplink transmission in time of the one or more uplink transmissionsassociated with the second sounding reference signal resource set, afirst uplink transmission in time of the one or more uplinktransmissions associated with the second sounding reference signalresource set and a second uplink transmission in time of the one or moreuplink transmissions associated with the first sounding reference signalresource set, the one or more uplink transmissions associated with thefirst sounding reference signal resource set, or the one or more uplinktransmissions associated with the second sounding reference signalresource set.
 16. The method of claim 1, wherein the configured grantconfiguration comprises a Type 1 configured grant physical uplink sharedchannel configuration.
 17. The method of claim 1, wherein the one ormore fields in the radio resource control signaling comprises one ormore of a sounding reference signal resource indicator field, aprecoding and number of layers field, or a pathloss reference indexfield.
 18. The method of claim 1, wherein the radio resource controlsignaling comprises one or both of the first control signaling or thesecond control signaling.
 19. The method of claim 1, wherein receivingthe second control signaling indicating the configured grantconfiguration comprises receiving second control signaling indicating aconfigured grant physical uplink shared channel configuration.
 20. Themethod of claim 1, wherein the one or more uplink transmissions comprisecodebook physical uplink shared channel transmissions or non-codebookphysical uplink shared channel transmissions.
 21. An apparatus forwireless communication at a user equipment (UE), comprising: aprocessor; memory coupled with the processor; and instructions stored inthe memory and executable by the processor to cause the apparatus to:receive first control signaling indicating a first sounding referencesignal resource set associated with a first set of power controlparameters and a second sounding reference signal resource setassociated with a second set of power control parameters; receive secondcontrol signaling indicating a configured grant configuration, the firstset of power control parameters and the second set of power controlparameters being for uplink transmissions and associated with theconfigured grant configuration; determine a configuration status of eachof one or more fields in radio resource control signaling based at leastin part on one or both of the first control signaling or the secondcontrol signaling; select a sounding reference signal resource set fromthe first sounding reference signal resource set or the second soundingreference signal resource set based at least in part on theconfiguration statuses; transmit one or more uplink transmissions on aphysical uplink shared channel associated with the configured grantconfiguration using the sounding reference signal resource set selectedfrom the first sounding reference signal resource set or the secondsounding reference signal resource set.
 22. The apparatus of claim 21,wherein the instructions to determine the configuration statuses of theone or more fields in the radio resource control signaling areexecutable by the processor to cause the apparatus to determine that oneor more second fields of the one or more fields are not configured. 23.The apparatus of claim 22, wherein the instructions to select thesounding reference signal resource set are executable by the processorto cause the apparatus to select the first sounding reference signalresource set based at least in part on one or more first fields of thebeing associated with the first sounding reference signal resource set.24. The apparatus of claim 22, wherein the instructions are furtherexecutable by the processor to cause the apparatus to receive thirdcontrol signaling indicating that the one or more fields are associatedwith one of the first sounding reference signal resource set or thesecond sounding reference signal resource set.
 25. The apparatus ofclaim 21, wherein the instructions to determine the configurationstatuses of the one or more fields in the radio resource controlsignaling are executable by the processor to cause the apparatus todetermine that one or more second fields of the one or more fields areconfigured.
 26. The apparatus of claim 25, wherein the instructions arefurther executable by the processor to cause the apparatus to determinethat one or more first fields of the one or more fields in the radioresource control signaling are associated with the first soundingreference signal resource set and that the one or more second fields ofthe one or more fields in the radio resource control signaling areassociated with the second sounding reference signal resource set,wherein selecting the sounding reference signal resource set from thefirst sounding reference signal resource set or the second soundingreference signal resource set is based at least in part on determiningthat the one or more first fields are associated with the first soundingreference signal resource set and that the one or more second fields areassociated with the second sounding reference signal resource set. 27.The apparatus of claim 26, wherein the instructions to select thesounding reference signal resource set are executable by the processorto cause the apparatus to select the sounding reference signal resourceset based on a fixed order for the one or more uplink transmissions. 28.The apparatus of claim 26, wherein the instructions are furtherexecutable by the processor to cause the apparatus to receive thirdcontrol signaling having a field indicating one of a fixed set ofpreconfigured mapping options associated with one or both of the firstsounding reference signal resource set or the second sounding referencesignal resource set.
 29. An apparatus for wireless communication at auser equipment (UE), comprising: means for receiving first controlsignaling indicating a first sounding reference signal resource setassociated with a first set of power control parameters and a secondsounding reference signal resource set associated with a second set ofpower control parameters; means for receiving second control signalingindicating a configured grant configuration, the first set of powercontrol parameters and the second set of power control parameters beingfor uplink transmissions and associated with the configured grantconfiguration; means for determining a configuration status of each ofone or more fields in radio resource control signaling based at least inpart on one or both of the first control signaling or the second controlsignaling; means for selecting a sounding reference signal resource setfrom the first sounding reference signal resource set or the secondsounding reference signal resource set based at least in part on theconfiguration statuses; means for transmitting one or more uplinktransmissions on a physical uplink shared channel associated with theconfigured grant configuration using the sounding reference signalresource set selected from the first sounding reference signal resourceset or the second sounding reference signal resource set.
 30. Anon-transitory computer-readable medium storing code for wirelesscommunication at a user equipment (UE), the code comprising instructionsexecutable by a processor to: receive first control signaling indicatinga first sounding reference signal resource set associated with a firstset of power control parameters and a second sounding reference signalresource set associated with a second set of power control parameters;receive second control signaling indicating a configured grantconfiguration, the first set of power control parameters and the secondset of power control parameters being for uplink transmissions andassociated with the configured grant configuration; determine aconfiguration status of each of one or more fields in radio resourcecontrol signaling based at least in part on one or both of the firstcontrol signaling or the second control signaling; select a soundingreference signal resource set from the first sounding reference signalresource set or the second sounding reference signal resource set basedat least in part on the configuration statuses; transmit one or moreuplink transmissions on a physical uplink shared channel associated withthe configured grant configuration using the sounding reference signalresource set selected from the first sounding reference signal resourceset or the second sounding reference signal resource set.